To avoid bodily injury or damage to the server or its components, make sure you are familiar with the safety signs on the server chassis or its components.

Table 1 Safety signs

Sign	Description
	Circuit or electricity hazards are present. Only H3C authorized or professional server engineers are allowed to service, repair, or upgrade the server. WARNING! To avoid bodily injury or damage to circuits, do not open any components marked with the electrical hazard sign unless you have authorization to do so.
	Electrical hazards are present. Field servicing or repair is not allowed. WARNING! To avoid bodily injury, do not open any components with the field-servicing forbidden sign in any circumstances.
	The RJ-45 ports on the server can be used only for Ethernet connections. WARNING! To avoid electrical shocks, fire, or damage to the equipment, do not connect an RJ-45 port to a telephone.
	The surface or component might be hot and present burn hazards. WARNING! To avoid being burnt, allow hot surfaces or components to cool before touching them.
	The server or component is heavy and requires more than one people to carry or move. WARNING! To avoid bodily injury or damage to hardware, do not move a heavy component alone. In addition, observe local occupational health and safety requirements and guidelines for manual material handling.
	The server is powered by multiple power supplies. WARNING! To avoid bodily injury from electrical shocks, make sure you disconnect all power supplies if you are performing offline servicing.

Power source recommendations

Power instability or outage might cause data loss, service disruption, or damage to the server in the worst case.

To protect the server from unstable power or power outage, use uninterrupted power supplies (UPSs) to provide power for the server.

Installation safety recommendations

To avoid bodily injury or damage to the server, read the following information carefully before you operate the server.

General operating safety

To avoid bodily injury or damage to the server, follow these guidelines when you operate the server:

· Only H3C authorized or professional server engineers are allowed to install, service, repair, operate, or upgrade the server.

· Place the server on a clean, stable table or floor for servicing.

· Make sure all cables are correctly connected before you power on the server.

· To avoid being burnt, allow the server and its internal modules to cool before touching them.

If you put the server in standby mode (system power LED in amber) with the power on/standby button on the front panel, the power supplies continue to supply power to some circuits in the server. To remove all power for servicing safety, you must first press the button, wait for the system to enter standby mode, and then remove the power cords from the server.

To avoid bodily injury or damage to the server, follow these guidelines:

· Always use the power cords that came with the server.

· Do not use the power cords that came with the server for any other devices.

· Power off the server when installing or removing any components that are not hot swappable.

Rack mounting recommendations

To avoid bodily injury or damage to the equipment, follow these guidelines when you rack mount a server:

· Mount the server in a standard 19-inch rack.

· Make sure the leveling jacks are extended to the floor and the full weight of the rack rests on the leveling jacks.

· Couple the racks together in multi-rack installations.

· Load the rack from the bottom to the top, with the heaviest hardware unit at the bottom of the rack.

· Get help to lift and stabilize the server during installation or removal, especially when the server is not fastened to the rails. As a best practice, a minimum of two people are required to safely load or unload a rack. A third person might be required to help align the server if the server is installed higher than check level.

· For rack stability, make sure only one unit is extended at a time. A rack might get unstable if more than one server unit is extended.

· Make sure the rack is stable when you operate a server in the rack.

· To maintain correct airflow and avoid thermal damage to the server, use blank panels to fill empty rack units.

ESD prevention

Electrostatic charges that build up on people and tools might damage or shorten the lifespan of the system board and electrostatic-sensitive components.

Preventing electrostatic discharge

To prevent electrostatic damage, follow these guidelines:

· Transport or store the server with the components in antistatic bags.

· Keep the electrostatic-sensitive components in separate antistatic bags until they arrive at an ESD-protected area.

· Place the components on a grounded surface before removing them from their antistatic bags.

· Avoid touching pins, leads, or circuitry.

Grounding methods to prevent electrostatic discharge

The following are grounding methods that you can use to prevent electrostatic discharge:

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Take adequate personal grounding measures, including wearing antistatic clothing and static dissipative shoes.

· Use conductive field service tools.

· Use a portable field service kit with a folding static-dissipating work mat.

Cooling performance

Poor cooling performance might result from improper airflow and poor ventilation and might cause damage to the server.

To ensure good ventilation and proper airflow, follow these guidelines:

· Install blanks if the following module slots are empty:

¡ Drive bays.

¡ Fan bays.

¡ PCIe slots.

¡ Power supply slots.

· Do not block the ventilation openings in the server chassis.

· To avoid thermal damage to the server, do not operate the server for long periods in any of the following conditions:

¡ Access panel open or uninstalled.

¡ Air baffles uninstalled.

¡ PCIe slots, drive bays, fan bays, or power supply slots empty.

Battery safety

The server's system board contains a system battery, which is designed with a lifespan of 3 to 5 years.

If the server no longer automatically displays the correct date and time, you might need to replace the battery. When you replace the battery, follow these safety guidelines:

· Do not attempt to recharge the battery.

· Do not expose the battery to a temperature higher than 60°C (140°F).

· Do not disassemble, crush, puncture, short external contacts, or dispose of the battery in fire or water.

· Dispose of the battery at a designated facility. Do not throw the battery away together with other wastes.

Preparing for installation

Prepare a rack that meets the rack requirements and plan an installation site that meets the requirements for space and airflow, temperature, humidity, equipment room height, cleanliness, and grounding.

Rack requirements

IMPORTANT:

To avoid affecting the server chassis, install power distribution units (PDUs) with the outputs facing backwards. If you install PDUs with the outputs facing the inside of the server, perform onsite survey to make sure the cables won't affect the server rear.

The server is 4U high. The rack for installing the server must meet the following requirements:

· A standard 19-inch rack.

· A clearance of more than 50 mm (1.97 in) between the rack front posts and the front rack door.

· A minimum of 1200 mm (47.24 in) in depth as a best practice. For installation limits for different rack depth, see Table 2.

Table 2 Installation limits for different rack depths

Rack depth	Installation limits
1000 mm (39.37 in)	· The H3C cable management arm (CMA) is not supported. · A clearance of 60 mm (2.36 in) is reserved from the server rear to the rear rack door for cabling. · The slide rails and PDUs might hinder each other. Perform onsite survey to determine the PDU installation location and the proper PDUs. If the PDUs hinder the installation and movement of the slide rails anyway, use other methods to support the server, a tray for example.
1100 mm (43.31 in)	Make sure the CMA does not hinder PDU installation at the server rear before installing the CMA. If the CMA hinders PDU installation, use a deeper rack or change the installation locations of PDUs.
1200 mm (47.24 in)	Make sure the CMA does not hinder PDU installation or cabling. If the CMA hinders PDU installation or cabling, change the installation locations of PDUs. For detailed installation suggestions, see Figure 1.

Figure 1 Installation suggestions for a 1200 mm deep rack (top view)

(1) 1200 mm (47.24 in) rack depth
(2) A minimum of 50 mm (1.97 in) between the front rack posts and the front rack door
(3) 780 mm (30.71 in) between the front rack posts and the rear of the chassis, including power supply handles at the server rear (not shown in the figure)
(4) 800 mm (31.50 in) server depth, including chassis ears
(5) 960 mm (37.80 in) between the front rack posts and the CMA
(6) 860 mm (33.86 in) between the front rack posts and the rear ends of the slide rails

Installation site requirements

Airflow direction of the server

Figure 2 Airflow direction of the server

(1) Directions of the airflow into the chassis and power supplies
(2) and (3) Direction of the airflow out of the chassis and power supplies

Temperature and humidity requirements

To ensure correct operation of the server, make sure the room temperature and humidity meet the requirements as described in "Appendix A Server specifications."

Equipment room height requirements

To ensure correct operation of the server, make sure the equipment room height meets the requirements as described in "Appendix A Server specifications."

Corrosive gas concentration requirements

Corrosive gases can accelerate corrosion and aging of metal components and even cause server failure. Table 3 describes common corrosive gases and their sources.

Table 3 Common corrosive gases and their sources

Corrosive gas	Sources
Hydrogen sulfide (H2S)	Geothermal emissions, microbiological activities, fossil fuel processing, wood pulping, sewage treatment, combustion of fossil fuel, auto emissions, ore smelting, and sulfuric acid manufacture.
Sulfur dioxide (SO2) and sulfur trioxide (SO3)	Combustion of fossil fuel, auto emissions, ore smelting, sulfuric acid manufacture, and tobacco smoke.
Sulphur (S)	Foundries and sulfur manufacture.
Hydrogen Fluoride (HF)	Fertilizer manufacture, aluminum manufacture, ceramics manufacture, steel manufacture, electronics device manufacture, and fossil fuel.
Nitrogen Oxide (NOx)	Automobile emissions, fossil fuel combustion, microbes, and chemical industry.
Ammonia (NH3)	Microbes, sewage, fertilizer manufacture, geothermal steam, refrigeration equipment, cleaning products, and reproduction (blueprint) machines.
Carbonic oxide (CO)	Combustion, automobile emissions, microbes, trees, and wood pulping.
Chlorine (Cl2) and chlorine dioxide (ClO2)	Chlorine manufacture, aluminum manufacture, papermills, refuse decomposition, and cleaning products.
Hydrochloric acid (HCl)	Automobile emissions, combustion, oceanic processes, and polymer combustion.
Hydrobromic acid (HBr) and hydroiodic acid (HI)	Automobile emissions.
Ozone (O3)	Atmospheric photochemical processes mainly involving nitrogen oxides and oxygenated hydrocarbons, automotive emissions, and electrostatic filters.
Hydrocarbons (CnHn)	Automobile emissions, fossil fuel processing, tobacco smoke, water treatment, microbes, paper mill, and many other sources, both natural and industrial.

Requirements for the data center equipment room

As a best practice, make sure the corrosive gas concentration for the data center equipment room meets the requirements of severity level G1 of ANSI/ISA 71.04. The rate of copper corrosion product thickness growth must be less than 300 Å/month, and the rate of silver corrosion product thickness growth must be less than 200 Å/month. Angstrom (Å) is a metric unit of length equal to one ten-billionth of a meter.

To meet the copper and silver corrosion rates stated in severity level G1, make sure the corrosive gases in the equipment room do not exceed the concentration limits as shown in Table 4.

Table 4 Corrosive gas concentration limits in the data center equipment room

Corrosive gas	Concentration (ppb)	Remarks
H2S	< 3	CAUTION: The concentration limits are calculated based on the reaction results of the gases in the equipment room with a relative humidity less than 50%. If the relative humidity of the equipment room increases by 10%, the severity level of ANSI/ISA 71.04 to be meet must also increase by 1.
SO2, SO3	< 10
Cl2	< 1
NOx	< 50
HF	< 1
NH3	< 500
O3	< 2

NOTE:

Part per billion (ppb) is a concentration unit. 1 ppb represents a volume-to-volume ratio of 1 to 100000000.

Requirements of corrosive gas concentration vary by server model. For information about the requirements, see the installation guide of the server.

Requirements for the non-data center equipment room

The corrosive gas concentration for the non-data center equipment room must meet the requirements of class 3C2 of IEC 60721-3-3:2002, as shown in Table 5.

Table 5 Corrosive gas concentration limits in the non-data center equipment room

Gas	Average concentration (mg/m³)	Maximum concentration (mg/m³)
SO₂	0.3	1.0
H₂S	0.1	0.5
Cl₂	0.1	0.3
HCI	0.1	0.5
HF	0.01	0.03
NH₃	1.0	3.0
O₃	0.05	0.1
NO_X	0.5	1.0

CAUTION:

As a best practice, control the corrosive gas concentrations in the equipment room at their average values. Make sure the corrosive gas concentrations do not exceed 30 minutes per day at their maximum values.

Requirements of corrosive gas concentration vary by server model. For information about the requirements, see the installation guide of the server.

Guidelines for controlling corrosive gases

To control corrosive gases, follow these guidelines:

· As a best practice, do not build the equipment room in a place with a high concentration of corrosive gases.

· Make sure the equipment room is not connected to sewer, sewage, vertical shaft, or septic tank pipelines and keep it far away from these pipelines. The air inlet of the equipment room must be away from such pollution sources.

· Use environmentally friendly materials to decorate the equipment room. Avoid using organic materials that contains harmful gases, such as sulfur or chlorine-containing insulation cottons, rubber mats, sound-proof cottons, and avoid using plasterboards with high sulfur concentration.

· Place fuel (diesel or gasoline) engines separately. Do not place them in the same equipment room with the device. Make sure the exhausted air of the engines will not flow into the equipment room or towards the air inlet of the air conditioners.

· Place batteries separately. Do not place them in the same room with the device.

· Employ a professional company to monitor and control corrosive gases in the equipment room regularly.

Cleanliness requirements

Mechanically active substances buildup on the chassis might result in electrostatic adsorption, which causes poor contact of metal components and contact points. The lifespan of the device might be shortened. In the worst case, electrostatic adsorption can cause communication failure.

Requirements for the data center equipment room

The concentration of dust participles in the equipment room must meet the ISO 8 cleanroom standard defined by ISO 14644-1, as described in Table 6. Make sure no zinc whiskers are in the equipment room.

Table 6 Dust particle concentration limit in the equipment room

Particle diameter	Concentration limit
≥ 5 µm	≤ 29300 particles/m³
≥ 1 µm	≤ 832000 particles/m³
≥ 0.5 µm	≤ 3520000 particles/m³

Requirements of dust particle concentration vary by server model. For information about the requirements, see the installation guide of the server.

Requirements for the non-data center equipement room

The concentration of dust participles (particle diameter ≥ 0.5 µm) must meet the requirement of the GB 50174-2017 standard, which is less than 17600000 particles/m³.

Requirements of dust particle concentration vary by server model. For information about the requirements, see the installation guide of the server.

Guidelines for controlling cleanliness

To maintain cleanliness in the equipment room, follow these guidelines:

· Keep the equipment room away from pollution sources and do not smoke or eat in the equipment room.

· Use double-layer glass in windows and seal doors and windows with dust-proof rubber strips.

· Use dustproof materials for floors, walls, and ceilings and use matt coating that does not produce powders.

· Keep the equipment room clean and clean the air filters of the rack regularly.

· Wear ESD clothing and shoe covers before entering the equipment room. Keep the ESD clothing and shoe covers clean and replace them frequently.

Grounding requirements

Correctly connecting the server grounding cable is crucial to lightning protection, anti-interference, and ESD prevention. The server can be grounded through the grounding wire of the power supply system and no external grounding cable is required.

Storage requirements

Follow these guidelines to store storage media:

· As a best practice, do not store an HDD for 6 months or more without powering on and using it.

· As a best practice, do not store an SSD, M.2 SSD, or SD card for 3 months or more without powering on and using it. Long unused time increases data loss risks.

· To store the server chassis, or an HDD, SSD, M.2 SSD, or SD card for 3 months or more, power on it every 3 months and run it for a minimum of 2 hours each time. For information about powering on and powering off the server, see "Powering on and powering off the server."

Installation tools

Table 7 lists the tools that you might use during installation.

Table 7 Installation tools

Picture	Name	Description
	T25 Torx screwdriver	Installs or removes screws inside chassis ears, including screw rack mount ears or multifunctional rack mount ears.
	T30 Torx screwdriver	Installs or removes captive screws on processor heatsinks.
	T15 Torx screwdriver (shipped with the server)	Installs or removes screws on the system board.
	T10 Torx screwdriver (shipped with the server)	Installs or removes screws on riser cards.
	Flat-head screwdriver	Installs or removes captive screws inside multifunctional rack mount ears or replaces system batteries.
	Phillips screwdriver	Installs or removes screws on drive carriers.
	Cage nut insertion/extraction tool	Inserts or extracts the cage nuts in rack posts.
	Diagonal pliers	Clips insulating sleeves.
	Tape measure	Measures distance.
	Multimeter	Measures resistance and voltage.
	ESD wrist strap	Prevents ESD when you operate the server.
	Antistatic gloves	Prevents ESD when you operate the server.
	Antistatic clothing	Prevents ESD when you operate the server.
	Ladder	Supports high-place operations.
	Interface cable (such as an Ethernet cable or optical fiber)	Connects the server to an external network.
	Type-C to USB cable	With a third-party USB Wi-Fi module installed, you can use the HDM Mobile client on a mobile terminal to access the HDM Web interface of the server. With a USB drive attached, you can download SDS logs from the HDM Web interface to the USB drive. NOTE: Support for the USB Wi-Fi module depends on the server model.
	USB Wi-Fi module or a USB drive
	Serial console cable	Connects the serial connector on the server to a monitor for troubleshooting.
	Monitor	Displays the output from the server.
	Temperature humidity meter	Displays current temperature and humidity.
	Oscilloscope	Displays the variation of voltage over time in waveforms.

Installing or removing the server

Installing the server

Installing rails

Install the inner rails to the server and the outer rails to the rack. For information about installing the rails, see the document shipped with the rails.

Rack-mounting the server

1. Slide the server into the rack. For more information about how to slide the server into the rack, see the document shipped with the rails.

Figure 3 Rack-mounting the server

2. Secure the server.

a. Push the server until the multifunctional rack mount ears are flush against the rack front posts, as shown by callout 1 in Figure 4.

b. Unlock the latches of the multifunctional rack mount ears, as shown by callout 2 in Figure 4.

c. Fasten the captive screws inside the chassis ears and lock the latches, as shown by callout 3 in Figure 4.

Figure 4 Securing the server

Installing cable management brackets

Install cable management brackets if the server is shipped with cable management brackets. For information about how to install cable management brackets, see the installation guide shipped with the brackets.

Connecting external cables

Cabling guidelines

WARNING!

To avoid electric shock, fire, or damage to the equipment, do not connect communication equipment to RJ-45 Ethernet ports on the server.

· For heat dissipation, make sure no cables block the inlet or outlet air vents of the server.

· To easily identify ports and connect/disconnect cables, make sure the cables do not cross.

· Label the cables for easy identification of the cables.

· Wrap unused cables onto an appropriate position on the rack.

· To avoid damage to cables when extending the server out of the rack, do not route the cables too tight if you use cable management brackets.

Connecting a mouse, keyboard, and monitor

About this task

Perform this task before you configure BIOS, HDM, UniSystem, or RAID on the server or enter the operating system of the server.

The server provides two DB15 VGA connectors for connecting a monitor. One is on the front panel and the other is on the rear panel.

The server is not shipped with a standard PS2 mouse and keyboard. To connect a PS2 mouse and keyboard, you must prepare a USB-to-PS2 adapter.

Procedure

1. Connect one plug of a VGA cable to a VGA connector on the server, and fasten the screws on the plug.

Figure 5 Connecting a VGA cable

2. Connect the other plug of the VGA cable to the VGA connector on the monitor, and fasten the screws on the plug.

3. Connect the mouse and keyboard.

¡ For a USB mouse and keyboard, directly connect the USB connectors of the mouse and keyboard to the USB connectors on the server.

¡ For a PS2 mouse and keyboard, insert the USB connector of the USB-to-PS2 adapter to a USB connector on the server. Then, insert the PS2 connectors of the mouse and keyboard into the PS2 receptacles of the adapter.

Figure 6 Connecting a PS2 mouse and keyboard by using a USB-to-PS2 adapter

Connecting an Ethernet cable

About this task

Perform this task before you set up a network environment or log in to the HDM management interface through the HDM network port to manage the server.

Procedure

1. Determine the network port on the server.

¡ To connect the server to the external network, use the Ethernet port on the network adapter.

¡ To log in to the HDM management interface, use the HDM dedicated network port. For the position of the HDM dedicated network port, see "Appendix A Server specifications."

If the server is configured with an OCP network adapter, you can also use the HDM shared network port on the OCP network adapter to log in to the HDM management interface.

2. Determine type of the Ethernet cable.

Verify the connectivity of the cable by using a link tester.

If you are replacing the Ethernet cable, make sure the new cable is the same type or compatible with the old cable.

3. Label the Ethernet cable by filling in the names and numbers of the server and the peer device on the label.

As a best practice, use labels of the same kind for all cables.

If you are replacing the Ethernet cable, label the new cable with the same number as the number of the old cable.

4. Connect one end of the Ethernet cable to the network port on the server and the other end to the peer device.

Figure 7 Connecting an Ethernet cable

5. Verify network connectivity.

After powering on the server, use the ping command to test the network connectivity. If the connection between the server and the peer device fails, verify that the Ethernet cable is securely connected.

6. Secure the Ethernet cable. For information about how to secure cables, see "Securing cables."

Connecting the power cord

Guidelines

WARNING!

To avoid damage to the equipment or even bodily injury, use the power cord that ships with the server.

Before connecting the power cord, make sure the server and components are installed correctly.

Procedure

1. Insert the power cord plug into the power receptacle of a power supply at the rear panel, as shown in Figure 8.

Figure 8 Connecting the power cord

2. Connect the other end of the power cord to the power source, for example, the power strip on the rack.

3. Secure the power cord to avoid unexpected disconnection of the power cord.

a. If the cable clamp is positioned too near the power cord that it blocks the power cord plug connection, press down the tab on the cable mount and slide the clip backward.

Figure 9 Sliding the cable clamp backward

b. Open the cable clamp, place the power cord through the opening in the cable clamp, and then close the cable clamp, as shown by callouts 1, 2, 3, and 4 in Figure 10.

Figure 10 Securing the AC power cord

c. Slide the cable clamp forward until it is flush against the edge of the power cord plug, as shown in Figure 11.

Figure 11 Sliding the cable clamp forward

Securing cables

Securing cables to cable management brackets

For information about how to secure cables to cable management brackets, see the installation guide shipped with the brackets.

Securing cables to slide rails by using cable straps

You can secure cables to either left slide rails or right slide rails. As a best practice for cable management, secure cables to left slide rails.

When multiple cable straps are used in the same rack, stagger the strap location, so that the straps are adjacent to each other when viewed from top to bottom. This positioning will enable the slide rails to slide easily in and out of the rack.

To secure cables to slide rails by using cable straps:

1. Hold the cables against a slide rail.

2. Wrap the strap around the slide rail and loop the end of the cable strap through the buckle.

3. Dress the cable strap to ensure that the extra length and buckle part of the strap are facing outside of the slide rail.

Figure 12 Securing cables to a slide rail

Removing the server from a rack

1. Power down the server. For more information, see "Powering off the server."

2. Disconnect all peripheral cables from the server.

3. Extend the server from the rack.

a. Open the latches of the multifunctional rack mount ears, as shown by callout 1 in Figure 13.

b. Loosen the captive screws inside the multifunctional rack mount ears, as shown by callout 2 in Figure 13.

c. Slide the server out of the rack, as shown by callout 3 in Figure 13.

Figure 13 Extending the server from the rack

4. Place the server on a clean, stable surface.

Powering on and powering off the server

Important information

If the server is connected to external storage devices, make sure the server is the first device to power off and then the last device to power on. This restriction prevents the server from mistakenly identifying the external storage devices as faulty devices.

Powering on the server

Restrictions and guidelines

To power on the server immediately after shutting it down, wait at least 30 seconds. This ensures that all internal components, such as HDDs and electronic parts, have fully powered down before starting up again.

Prerequisites

Before you power on the server, you must complete the following tasks:

· Install the server and internal components correctly.

· Connect the server to a power source.

Procedure

Powering on the server by pressing the power on/standby button

Press the power on/standby button to power on the server.

The server exits standby mode and supplies power to the system. The system power LED changes from steady amber to flashing green and then to steady green. For information about the position of the system power LED, see "Appendix A Server specifications."

Powering on the server from the HDM Web interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Power on the server.

a. Select System > Power Management.

b. Click Power on.

For more information, see HDM online help.

Powering on the server from the remote console interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Log in to a remote console and then power on the server.

For information, see HDM online help.

Configuring automatic power-on

You can configure automatic power-on from HDM or the BIOS.

To configure automatic power-on from HDM:

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Configure automatic power-on for the server.

a. Select System > Power Management > Power Supply Info, and then click System Power Restore.

b. Select Always power on, and then click OK.

For more information, see HDM online help.

To configure automatic power-on from the BIOS:

3. Log in to the BIOS.

For information about how to log in to the BIOS, see the BIOS user guide for the server.

2. Configure automatic power-on for the server.

a. Select Server > AC Restore Settings, and then press Enter.

b. Select Always Power On, and then press Enter.

c. Press F4 to save the configuration.

For more information, see the BIOS user guide for the server.

Powering off the server

Guidelines

Before powering off the server, you must complete the following tasks:

· Back up all critical data.

· Make sure all services have stopped or have been migrated to other servers.

Procedure

Powering off the server from its operating system

1. Connect a monitor, mouse, and keyboard to the server.

2. Shut down the operating system of the server.

3. Disconnect all power cords from the server.

Powering off the server by pressing the power on/standby button

1. Press the power on/standby button and wait for the system power LED to turn into steady amber.

2. Disconnect all power cords from the server.

Powering off the server forcedly by pressing the power on/standby button

IMPORTANT:

This method forces the server to enter standby mode without properly exiting applications and the operating system. Use this method only when the server system crashes. For example, a process gets stuck.

1. Press and hold the power on/standby button until the system power LED turns into steady amber.

2. Disconnect all power cords from the server.

Powering off the server from the HDM Web interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Power off the server.

For more information, see HDM online help.

3. Disconnect all power cords from the server.

Powering off the server from the remote console interface

1. Log in to HDM.

For information about how to log in to HDM, see the firmware update guide for the server.

2. Log in to a remote console and then power off the server.

For information about how to log in to a remote console, see HDM online help.

3. Disconnect all power cords from the server.

Configuring the server

The following information describes the procedures to configure the server after the server installation is complete.

Configuration flowchart

Figure 14 Configuration flowchart

Powering on the server

1. Power on the server. For information about the procedures, see "Powering on the server."

2. Verify that the health LED on the front panel is steady green, which indicates that the system is operating correctly. For more information about the health LED status, see "Appendix A Server specifications."

Configuring basic BIOS settings

You can set the server boot order and the BIOS passwords from the BIOS setup utility of the server.

NOTE:

The BIOS setup utility screens are subject to change without notice.

Setting the server boot order

The server has a default boot order. You can change the server boot order from the BIOS. For the default boot order and the procedure of changing the server boot order, see the BIOS user guide for the server.

Setting the BIOS passwords

BIOS passwords include a boot password as well as an administrator password and a user password for the BIOS setup utility. By default, no passwords are set.

To prevent unauthorized access and changes to the BIOS settings, set both the administrator and user passwords for accessing the BIOS setup utility. Make sure the two passwords are different.

After setting the administrator password and user password for the BIOS setup utility, you must enter the administrator password or user password each time you access the BIOS setup utility.

· To obtain administrator privileges, enter the administrator password.

· To obtain the user privileges, enter the user password.

For the difference between the administrator and user privileges and guidelines for setting the administrator and user passwords, see the BIOS user guide for the server.

Configuring RAID

Configure physical and logical drives (RAID arrays) for the server.

The supported RAID levels and RAID configuration methods vary by storage controller model. For more information, see the storage controller user guide for the server.

Installing the operating system and hardware drivers

Installing the operating system

Install a compatible operating system on the server by following the procedures described in the operating system installation guide for the server.

For the server compatibility with the operating systems, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

Installing hardware drivers

IMPORTANT:

To avoid hardware unavailability caused by an update failure, always back up the drivers before you update them.

For newly installed hardware to operate correctly, the operating system must have the required hardware drivers.

To install a hardware driver, see the operating system installation guide for the server.

Updating firmware

IMPORTANT:

Verify the hardware and software compatibility before firmware upgrade. For information about the hardware and software compatibility, see the software release notes.

You can update the following firmware from UniSystem or HDM:

· HDM.

· BIOS.

· CPLD.

· DBCPLD.

· BPCPLD.

· PSU.

· LCD.

· PFRCPLD.

· OCPCPLD.

For information about the update procedures, see the firmware update guide for the server.

Replacing hardware options

If you are replacing multiple hardware options, read their replacement procedures and identify similar steps to streamline the entire replacement procedure.

This section includes procedures for replacing and adding hardware options. If they differ greatly, the section will describe them separately. When they are similar, the section will describe only the replacement procedure. To add a hardware option based on the replacement procedure, first remove the blank for that hardware option.

To watch the hardware installation videos, access the official website at http://www.h3c.com/en/home/qr/default.htm?id=476.

Removing and installing the access panel

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing the access panel

1. If the access panel is locked, use a T15 Torx screwdriver to turn the screw on the locking lever of the access panel 90 degree anticlockwise to unlock the access panel.

2. Press the button on the locking lever and then lift the locking lever. The access panel will automatically slide to the server rear.

3. Lift the access panel to remove it from the server.

Installing the access panel

1. Open the locking lever of the access panel. Then, press the button on the locking lever and lift the locking lever.

2. Install the access panel:

a. Place the access panel on top of the chassis, with the guide pin in the chassis aligned with the pin hole in the panel.

b. Close the locking lever. The access panel automatically slides to the closed position.

c. (Optional.) Use a T15 Torx screwdriver to turn the screw on the locking lever of the access panel 90 degree clockwise to lock the access panel.

Removing and installing the riser card cage

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing the riser card cage

1. Pressing and holding the latches at both sides of the riser card cage, pull the riser card cage backward until you hear a click and cannot pull it further.

2. Lift the riser card cage to remove it from the server.

Installing the riser card cage

1. Align the pegs at both sides of the riser card cage with the notches on the side panels, and place the riser card cage in the server.

CAUTION:

Make sure the pegs of the riser card cage fit into the notches on the side panels to ensure correct installation.

2. Push the riser card cage to the server front until you hear a click.

Removing and installing a blank

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

Removing and installing a blank

Install blanks over the empty slots if the following modules are not present and remove blanks before you install the following modules:

· Drives.

· LCD smart management module.

· Drive backplanes.

· Power supplies.

· Riser cards.

· PCIe modules.

· OCP network adapter.

Use Table 3 as a guide when you remove or install a blank for a hardware option.

Table 8 Removing or installing a blank

Task	Procedure
Remove a drive blank.	Press the latches on the drive blank inward with one hand, and pull the drive blank out of the slot.
Install a drive blank.	Insert the drive blank into the slot.
Remove the LCD smart management module blank.	From the inside of the chassis, use a flat-head screwdriver to push aside the clip of the blank and push the blank outward to disengage the blank. Then, pull the blank out of the server.
Install the LCD smart management module blank.	Insert the blank into the slot with the TOP mark facing up and push the blank until you hear a click.
Remove a drive backplane blank.	From the inside of the chassis, use a flat-head screwdriver to push aside the clip of the blank and push the blank outward to disengage the blank. Then, pull the blank out of the server.
Install a drive backplane blank.	Insert the drive backplane blank into the slot and push the blank until you hear a click.
Remove a power supply blank.	Hold and pull the power supply blank out of the slot.
Install a power supply blank.	Insert the power supply blank into the slot with the TOP mark facing up.
Remove a riser card blank.	Lift the riser card blank to remove it from the connector.
Install a riser card blank.	Insert the riser card blank into the slot along the grooves.
Remove a PCIe module blank.	Open the retaining latch of the riser card and then lift the blank upwards.
Install a PCIe module blank	Insert the PCIe module blank into the slot and then close the retaining latch of the riser card.
Remove an OCP network adapter blank	Pinching the handle on the OCP network adapter blank, pull the blank out.
Install an OCP network adapter blank	Insert the OCP network adapter blank in to the slot.

Replacing the intelligent security bezel

Guidelines

The intelligent security bezel is hot swappable.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the intelligent security bezel

1. Unlock the intelligent security bezel. Insert the key into the lock and press and turn the key 90 degree clockwise.

CAUTION:

To avoid damage to the lock, hold down the key while you are turning the key.

2. Press the latch and open the security bezel. Then, pull the right edge of the bezel out of the groove in the right chassis ear to remove the security bezel.

Installing the intelligent security bezel

1. Press the right edge of the security bezel into the groove in the right chassis ear. Press the latch at the other end and close the bezel.

2. Lock the security bezel. Insert the key into the lock, press and turn the key 90 degree anticlockwise, and the pull out the key.

CAUTION:

To avoid damage to the lock, hold down the key while you are turning the key.

Replacing a DIMM

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The server supports PMem 200 DIMMs and DDR4 DIMMs. Compared with DDR4 DIMMs, PMem 200 DIMMs provide larger capacity and can protect data from getting lost in case of unexpected system power outage.

DDR4 DIMMs include LRDIMM and RDIMM.

· RDIMMs can perform parity check on addresses.

· Compared with RDIMMs, LRDIMMs provide larger capacity and higher bandwidth.

Both DDR4 and PMem 200 DIMMs are referred to as DIMMs in this document, unless otherwise stated.

Guidelines

The server provides 6 DIMM channels per processor and each channel has two DIMM slots. If the server has two processors, the total number of DIMM slots is 24. If the server has four processors, the total number of DIMM slots is 48.

You can install only DDR4 DIMMs on the server or install both PMem 200 and DDR4 DIMMs on the server.

DIMM and processor compatibility

When you install a DIMM, use Table 4 to verify that it is compatible with the processors.

Table 9 DIMM and processor compatibility

Processor	Memory type @ speed	Max memory size per processor (including DDR4 and PMem)
Intel Cedar Island	· DDR4 @3200 MT/s · PMem 200 (only the AD mode is supported and the MM mode is not supported)	· For processors suffixed with H: 1 TB · For processors suffixed with L: 4.5 TB

Processor

Memory type @ speed

Max memory size per processor (including DDR4 and PMem)

Intel Cedar Island

· DDR4 @3200 MT/s

· PMem 200 (only the AD mode is supported and the MM mode is not supported)

· For processors suffixed with H: 1 TB

· For processors suffixed with L: 4.5 TB

Operating memory frequency

NOTE:

· To obtain the memory frequency and maximum memory frequency supported by a specific processor, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66. You can query the memory frequency by selecting Memory Module and query the maximum supported memory frequency by selecting Processor.

· The number of DIMMs per channel (1DPC or 2DPC) does not affect the operating DIMM frequency.

The actual operating memory frequency is equal to the lesser of the memory frequency or the maximum memory frequency supported by the processors. For example, if the memory frequency is 2666 MT/s and the maximum memory frequency supported by processors is 3200 MT/s, the actual operating memory frequency is 2666 MT/s.

NOTE:

For DIMMs to operate at 3200 MT/s, make sure the following conditions are met:

· Processors that support the 3200 MT/s data frequency are used.

· DIMMs with a maximum of 3200 MT/s data frequency are used.

· Only one DIMM per channel is installed.

Guidelines for installing only DDR4 DIMMs

When you install only DDR4 DIMMs, follow these restrictions and guidelines:

· Make sure the corresponding processors are present before powering on the server.

· As a best practice, install DDR4 DIMMs that have the same product code and DIMM specifications (type, capacity, rank, and frequency). For information about DIMM product codes, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66. To install components or replace faulty DIMMs of other specifications, contact Technical Support.

· For the configured memory mode to take effect, make sure the following installation requirements are met:

Memory mode	DIMM requirements
Independent	· If two processors are present, see Figure 15. · If four processors are present, see Figure 16 and Figure 17.
Mirror	· A minimum of two DIMMs for a processor. · This mode does not support DIMM population schemes that are not recommended in Figure 15, Figure 16, and Figure 17. ¡ If two processors are present, see Figure 15. ¡ If four processors are present, see Figure 16 and Figure 17.

Memory mode

DIMM requirements

Independent

· If two processors are present, see Figure 15.

· If four processors are present, see Figure 16 and Figure 17.

Mirror

· A minimum of two DIMMs for a processor.

· This mode does not support DIMM population schemes that are not recommended in Figure 15, Figure 16, and Figure 17.

¡ If two processors are present, see Figure 15.

¡ If four processors are present, see Figure 16 and Figure 17.

NOTE:

· If the DIMM configuration does not meet the requirements for the configured memory mode, the system uses the default memory mode (Independent mode).

· In Figure 15, Figure 16, and Figure 17, the black DIMM slots (for example, the F1 slot) are grey colored, and the white DIMM slots (for example, the F0 slot) are not colored.

Figure 15 DDR4-only DIMM population schemes (two processors present)

Figure 16 DDR4-only DIMM population schemes for processors 1 and 2 (four processors present)

Figure 17 DDR4-only DIMM population schemes for processors 3 and 4 (four processors present)

Guidelines for mixture installation of PMem 200 and DDR4 DIMMs

When you install PMem 200 and DDR4 DIMMs on the server, follow these restrictions and guidelines:

· Make sure the corresponding processors are present before powering on the server.

· To avoid DIMM unavailability, make sure all the PMem 200 DIMMs have never been used on any other products.

· Make sure all DDR4 DIMMs have the same product code and all PMem DIMMs have the same product code. For information about DIMM product codes, use the query tool available from http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

· On the Cedar Island platform, PMem 200 supports only the AD mode and does not support the MM mode. To support the AD mode, make sure the memory size per processor (total size of DDR4 and PMem) is smaller than or equal to the maximum memory size supported by the processor (total supported size of DDR4 and PMem). For more information about the maximum memory size supported by a processor (total supported size of DDR4 and PMem), see Table 4.

NOTE:

In Figure 18, Figure 19, and Figure 20, the black DIMM slots (for example, the F1 slot) are grey colored, and the white DIMM slots (for example, the F0 slot) are not colored.

If two processors are present, populate DIMMs as shown in Figure 18.

Figure 18 Mixed DDR4 and PMem DIMM population schemes (two processors present)

If four processors are present, populate DIMMs as shown in Figure 19 and Figure 20.

Figure 19 Mixed DDR4 and PMem DIMM population schemes (for processors 1 and 2) (four processors present)

Figure 20 Mixed DDR4 and PMem DIMM population schemes (for processors 3 and 4) (four processors present) (2)

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a DIMM

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Remove the processor mezzanine board if the DIMM is on the system board.

6. Open the DIMM slot latches and pull the DIMM out of the slot to remove the DIMM.

Installing a DIMM

1. Install the DIMM. Align the notch on the DIMM with the connector key in the DIMM slot and press the DIMM into the socket until the latches lock the DIMM in place.

2. Install the removed processor mezzanine board.

3. Install the chassis air baffle.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

8. (Optional.) Enter the BIOS to change the memory mode, if necessary. For more information, see the BIOS user guide of the server.

CAUTION:

The PMem 200 firmware is closely related to the BIOS version. If you replace a PMem 200 DIMM, follow these restrictions and guidelines:

· After the replacement, upgrade the PMem 200 firmware to the version compatible with the BIOS firmware. For more information, see the release notes for the corresponding BIOS version.

· The release notes for BIOS version 5.28 and above support viewing the compatibility between PMem 200 firmware and BIOS firmware. For other BIOS versions, contact Technical Support.

Verifying the replacement

Use one of the following methods to verify that the DIMM is installed correctly:

· Using the operating system:

¡ For the Windows operating system, click Run from the Start menu, enter msinfo32, and verify the memory capacity of the DIMM.

¡ For the Linux operating system, execute the cat /proc/meminfo command to verify the memory capacity.

· Using HDM:

· Using BIOS:

Enter the BIOS, select Socket Configuration > Memory Configuration > Memory Topology, and press Enter. Then, verify the memory capacity of the DIMM.

If the memory capacity displayed is inconsistent with the actual capacity, remove and then install the DIMM, or replace the DIMM with a new DIMM.

For a DIMM in Mirror mode or enabled with memory rank sparing, the capacity displayed is smaller than the actual capacity.

Adding a processor

For information about how to add a processor, see H3C UniServer R6900 G5 Server Processor Installation Quick Start.

For more information about processor installation guidelines, see "Replacing a processor."

Replacing a processor

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Guidelines

· You can install two or four processors. If you install only two processors, make sure processors 1 and 2 are present.

· To avoid damage to a processor or the system board, only H3C authorized or professional server engineers can install, replace, or remove a processor.

· Make sure the processors on the server are the same model.

· The pins in the processor sockets are very fragile and prone to damage. Install a protective cover if a processor socket is empty.

· For the server to operate correctly, make sure processor 1 is in position. For more information about processor locations, see "Appendix A Server specifications."

· Make sure a protective cover is installed over each empty processor socket.

· Different processors might have different heatsinks, but the processor replacement procedure is the same.

· You must paste the barcode label shipped with the processor to the side of the heatsink to cover the original barcode label on the heatsink. This ensures that H3C will provide the warranty service for the processor.

Processor model suffixes

If the model of a processor is UN-CPU-INTEL-8356H-2Ub, the model suffix is H. For more information about the supported processor models, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

Table 5 displays the meanings of processor model suffixes for the Intel Ice Lake processors.

Table 10 Processor model suffix description

Processor model suffix	Description	Remarks
H	Cooper Lake CPU	Cooper Lake processor.
L	Large memory variants	Supports high memory capacity.
This table is for reference only. For detailed information, see the Inter official website.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a processor

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Remove the processor mezzanine board if the processor is on the system board.

6. Remove the processor heatsink:

a. Loosen the four captive screws.

b. Open heatsink clips at the four corners.

c. Lift the heatsink slowly to remove it.

CAUTION:

To avoid poor contact between the processor and the system board or damage to the pins in the processor socket, tighten the screws to a torque value of 0.9 Nm (8 in-lbs).

7. Remove the processor:

a. Lift the locking lever to release the processor.

b. Hold the processor to pull it out from the retaining bracket.

8. Remove the processor retaining bracket from the heatsink:

a. Release the four corner clips of the retaining bracket from the heatsink. You must press one clip and its cater-cornered clip outward, and press the other two clips inward.

b. Lift the retaining bracket to remove it from the heatsink.

9. Use isopropanol wiping cloth to clear the residual thermal grease from the processor top and heatsink.

Installing a processor

1. Install the retaining bracket onto the heatsink:

a. Close the ejector lever on the retaining bracket. Otherwise, the processor might fail to be installed in place.

b. Align the alignment triangle on the retaining bracket with the cut-off corner of the heatsink. Place the bracket on top of the heatsink, with the four corners of the bracket clicked into the four corners of the heatsink.

2. Smear thermal grease onto the processor:

a. Clean the heatsink. Make sure no thermal grease remains on the heatsink top.

b. Use the thermal grease injector to inject 0.6 ml of thermal grease to the five dots on the processor, 0.12 ml for each dot.

3. Install the processor onto the retaining bracket:

CAUTION:

To avoid damage to the processor, always hold the processor by its edges. Never touch the gold contacts on the processor bottom.

a. Align the small triangle on the processor with the alignment triangle in the retaining bracket, and align the guide pin on the bracket with the notch on the triangle side of the processor.

b. Lower the processor gently and make sure the guide pins on the opposite side of the bracket fit snugly into notches on the processor.

4. Install the heatsink onto the server:

a. Align the alignment triangle on the retaining bracket with the cut-off corner of the processor socket and the pin holes in the heatsink with the guide pins on the processor socket. Lower down the heatsink on the processor socket.

b. Press down the heatsink clips at the four corners to lock the heatsink in place.

c. Use a T30 Torx screwdriver to fasten the four captive screws on the heatsink.

CAUTION:

To avoid poor contact between the processor and the system board or damage to the pins in the processor socket, tighten the screws to a torque value of 0.9 Nm (8 in-lbs).

5. Paste bar code label supplied with the processor over the original label on the heatsink.

IMPORTANT:

This step is required for you to obtain H3C's processor servicing.

6. Install the removed processor mezzanine board.

7. Install the chassis air baffle.

8. Install the access panel. For more information, see "Installing the access panel."

9. Rack-mount the server. For more information, see "Rack-mounting the server."

10. Connect the power cord. For more information, see "Connecting the power cord."

11. Power on the server. For more information, see "Powering on the server."

Verifying the replacement

Log in to HDM and view the operating status of the processor to verify that the processor is operating correctly. For more information, see the HDM online help.

Replacing a SAS/SATA drive

To configure RAID settings after the drive is replaced, see the storage controller user guide for the server.

Guidelines

The drives are hot swappable. If you hot swap an HDD repeatedly within 30 seconds, the system might fail to identify the drive.

SAS/SATA drives support hot swapping in either of the following conditions:

· SAS/SATA drives managed by a storage controller support hot swapping after the server enters the BIOS Setup Utility or the operating system.

· SATA drives managed by the embedded VROC storage controller supports hot swapping after the server enters the operating system.

If you are using the drives to create a RAID, follow these restrictions and guidelines:

· To avoid degraded RAID performance or RAID creation failures, make sure all drives in the RAID are the same type (HDDs or SSDs) and have the same connector type (SAS or SATA).

· For efficient use of storage, use drives that have the same capacity to build a RAID. If the drives have different capacities, the lowest capacity is used across all drives in the RAID.

· If one drive is used by several logical drives, RAID performance might be affected and maintenance complexities will increase.

· If the installed drive contains RAID information, you must clear the information before configuring RAIDs. As a best practice, install drives that do not contain RAID information.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the position of the drive to be replaced.

Identify the RAID array information of the drive to be replaced. To replace a drive in a non-redundancy RAID array, back up data in the RAID array if the old drive is full or the new drive is of a different model.

Removing a SAS/SATA drive

1. Observe the drive LEDs to verify that the drive is not selected by the storage controller and is not performing a RAID migration or rebuilding. For more information about drive LEDs, see drive LEDs in "Appendix B Component specifications".

2. Remove the drive:

¡ To remove an SSD, press the button on the drive panel to release the locking lever, and then hold the locking lever and pull the drive out of the slot.

¡ To remove an HDD, press the button on the drive panel to release the locking lever. Pull the drive 3 cm (1.18 in) out of the slot. Wait for a minimum of 30 seconds for the drive to stop rotating, and then pull the drive out of the slot.

3. Remove the drive carrier. Remove the screws that secure the drive and then remove the drive from the carrier.

Installing a SAS/SATA drive

IMPORTANT:

As a best practice, install drives that do not contain RAID information.

1. Attach the drive to the drive carrier. Place the drive in the carrier and then use four screws to secure the drive into place.

2. Remove the blank from the target drive slot. Press the unlocking button on the drive panel and the locking lever opens. Insert the drive into the slot and push it gently until you cannot push it further, and then close the locking lever.

Verifying the replacement

Use one of the following methods to verify that the drive has been replaced correctly:

· Verify the drive properties (including capacity) by using one of the following methods:

¡ Log in to HDM. For more information, see H3C Servers HDM online help.

¡ Access the BIOS. For more information, see the storage controller user guide for the server.

¡ Access the CLI or GUI of the server.

· Observe the drive LEDs to verify that the drive is operating correctly. For more information about drive LEDs, see drive LEDs in "Appendix B Component specifications".

Adding an NVMe drive

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the position of the drive to be replaced.

Identify the RAID array information for the drive to be replaced. To replace a drive in a non-redundancy RAID array, back up data in the RAID array if the old drive is full or the new drive is of a different model.

For more information about installation guidelines, see "Guidelines."

Procedure

NOTE:

NVMe drives support hot insertion in some operating systems. For more information, visit the compatibility lookup tool at https://iconfig-chl.h3c.com/iconfig/OSIndex?language=en.

1. Remove the security bezel, if any. Unlock the security bezel and remove it from the server.

2. Install NVMe drive to the drive carrier. Place the four screws into the holes, and then tighten them sequentially.

3. Install the NVMe drive.

¡ If hot insertion of NVMe drives is supported, see H3C Servers NVMe Drive Online Replacement User Guide.

¡ If hot insertion of NVMe drives is not supported, proceed to steps 4 through 6.

4. Power off the server. For more information, see "Powering off the server."

5. Insert the drive into the slot and push it gently until you cannot push it further, and then close the locking lever.

6. Install the removed security bezel. Press the latch at the other end, close the security bezel, and then release the latch to secure the security bezel into place. Insert the key provided with the bezel into the lock on the bezel and lock the security bezel.

Verifying the installation

Use the following methods to verify that the drive is installed correctly:

· Verify the drive properties (including capacity) by using one of the following methods:

¡ Access HDM. For more information, see HDM online help.

¡ Access the BIOS. For more information, see the BIOS user guide for the server.

¡ Access the CLI or GUI of the server.

· Observe the drive LEDs to verify that the drive is operating correctly. For more information, see "Appendix B Component specifications."

Replacing an NVMe drive

Guidelines

Support for hot insertion and managed hot removal of NVMe drives varies by operating system. For more information, use the OS compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=65. For more information, see H3C Servers NVMe Drive Online Replacement User Guide.

If an operating system supports hot swapping of NVMe drives, follow these guidelines:

· Insert NVMe drives steadily without pauses to prevent the operating system from being stuck or restarted.

· Do not hot swap multiple NVMe drives at the same time. As a best practice, hot swap NVMe drives one after another at intervals longer than 30 seconds. After the operating system identifies the first NVMe drive, you can hot swap the next drive. If you insert multiple NVMe drives simultaneously, the system might fail to identify the drives.

If you are using the drives to create a RAID, follow these restrictions and guidelines:

· For efficient use of storage, use drives that have the same capacity to build a RAID. If the drives have different capacities, the lowest capacity is used across all drives in the RAID. A drive with extra capacity cannot be used to build other RAIDs.

· If the installed drive contains RAID information, you must clear the information before configuring RAIDs. As a best practice, install drives that do not contain RAID information.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Identify the position of the drive to be replaced.

Removing an NVMe drive

1. Remove the security bezel, if any.

2. Identify if the system supports hot removal or managed hot removal of NVMe drives.

¡ If neither hot removal nor managed hot removal of NVMe drives is supported, power off the server. For more information, see "Powering off the server."

¡ If hot removal or managed hot removal of NVMe drives is supported, see H3C Servers NVMe Drive Online Replacement User Guide.

3. Remove the drive. Press the button on the drive panel to release the locking lever, and then hold the locking lever and pull the drive out of the slot.

4. Remove the drive carrier. Remove the screws that secure the drive and then remove the drive from the carrier.

Installing an NVMe drive

1. Identify if the drive was removed through hot removal or managed hot removal.

¡ If the drive was removed through hot removal or managed hot removal, see H3C Servers NVMe Drive Online Replacement User Guide.

¡ If the drive was not removed through hot removal or managed hot removal, proceed to steps 2 through 4.

2. Attach the drive to the drive carrier. Place the drive in the carrier and then use four screws to secure the drive into place.

3. Insert the drive into the slot and push it gently until you cannot push it further, and then close the locking lever.

4. Install the removed security bezel. Press the latch at the other end, close the security bezel, and then release the latch to secure the security bezel into place. Insert the key provided with the bezel into the lock on the bezel and lock the security bezel.

Verifying the replacement

Use the following methods to verify that the drive is installed correctly:

· Verify the drive properties (including capacity) by using one of the following methods:

¡ Access HDM. For more information, see HDM online help.

¡ Access the BIOS. For more information, see the BIOS user guide for the server.

¡ Access the CLI or GUI of the server.

· Observe the drive LEDs to verify that the drive is operating correctly. For more information, see "Appendix B Component specifications."

Replacing the system board

Guidelines

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

To prevent electrostatic discharge, place the removed parts on an antistatic surface or in antistatic bags.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the system board

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the OCP network adapter.

4. Remove the power supplies.

5. Remove the access panel. For more information, see "Removing the access panel."

6. Remove all fans.

7. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

8. Remove all riser cards installed on the server.

9. Remove the riser card cage.

10. Remove the processor mezzanine board.

11. Disconnect all cables connected to the system board.

12. Remove the cable baffle.

13. Remove all components installed on the system board, for example, the NVMe VROC module.

14. Removed the DIMMs.

15. Remove the processors and heatsinks.

16. Install protective covers over the empty processor sockets. Place a cover on each socket and press the cover diagonally to secure it.

17. Remove the system board:

a. Loosen the two captive screws on the system board.

b. Hold the system board handle and slide the system board toward the server front. Then, lift the system board to remove it from the chassis.

Installing the system board

1. Install the system board:

a. Hold the system board handle and slowly place the system board in the chassis. Then, slide the system board toward the server rear until the connectors (for example, USB connectors and the Ethernet port) on it are securely seated.

NOTE:

The connectors are securely seated if you cannot use the guiding bracket of the system board to lift the system board.

b. Fasten the two captive screws on the system board.

2. Installed the removed cable cover.

3. Reconnect cables to the system board.

4. Remove the installed protective covers over the processor sockets. Hold a cover and lift it straight up and away from a socket.

5. Install the removed processors and heatsinks.

6. Install the removed DIMMs.

7. Install the removed components (for example, the NVMe VROC module) on the system board.

8. Install the removed fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

9. Install the removed fans.

10. Install the removed processor mezzanine board.

11. Install the removed riser card cage.

12. Install the removed riser cards.

13. Install the chassis air baffle.

14. Install the access panel.

15. Install the removed OCP network adapter.

16. Install the removed power supplies.

17. Rack-mount the server. For more information, see "Rack-mounting the server."

18. Connect the power cord. For more information, see "Connecting the power cord."

19. Power on the server. For more information, see "Powering on the server."

Replacing the processor mezzanine board

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the processor mezzanine board

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle:

a. Disconnect the supercapacitor extension cable if a supercapacitor is installed on the mezzanine board.

b. Hold and press the air baffle by the blue notches at both ends, and lift the air baffle out of the chassis.

5. Disconnect cables from the processor mezzanine board, if any.

6. Remove the processor mezzanine board:

a. Remove riser card 3, if any. For more information, see "Removing a riser card and a PCIe module."

b. Disconnect all cables from the processor mezzanine board.

c. Press the unlocking button on the locking levels to release the handle of the processor mezzanine board, and then lift the handle up a little bit.

d. Hold the handle and the screw and lift the processor mezzanine board out of the chassis.

7. Remove all processors and heatsinks from the processor mezzanine board.

8. Install protective covers over the empty processor sockets. Place a cover on each socket and press the cover diagonally to secure it.

9. Remove DIMMs from the processor mezzanine board.

10. Remove the midplane. Remove all the screws that secure the midplane to the server, and then slowly lift the midplane out of the chassis.

Installing the processor mezzanine board

1. Install the midplane to the processor mezzanine board. Align the pins on the midplane with the guide pins on the processor mezzanine board, place the midplane downward slowly, and press the midplane to install it into place. Then, use screws to secure the midplane.

2. Remove the protective cover from each processor socket. Hold the protective cover and lift it to release it from the processor socket.

3. Install the removed processors and heatsinks.

4. Install the removed DIMMs.

5. Install the processor mezzanine board:

a. Hold the handle and the screw on the processor mezzanine board and place it in the chassis.

b. Press and close the locking levers at both sides till they click into place.

c. Install the removed GPU support brackets. Slide a GPU support bracket along the slot until the standout of the GPU fits into the notch of the GPU support bracket.

d. Install removed riser card 3. For more information, see "Installing PCIe modules and a riser card on PCIe riser connector 3."

6. Re-connect all disconnected cables to the processor mezzanine board.

7. Install the chassis air baffle:

a. Place the chassis air baffle in the chassis.

b. Connect the disconnected supercapacitor extension cables, if any.

8. Install the access panel. For more information, see "Installing the access panel."

9. Rack-mount the server. For more information, see "Rack-mounting the server."

10. Connect the power cord. For more information, see "Connecting the power cord."

11. Power on the server. For more information, see "Powering on the server."

Replacing the midplane

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the midplane

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle:

a. Disconnect the supercapacitor extension cable if a supercapacitor is installed on the mezzanine board.

b. Hold and press the air baffle by the blue notches at both ends, and lift the air baffle out of the chassis.

5. Remove the processor mezzanine board.

6. Remove the midplane. Remove all the screws that secure the midplane to the server, and then pull the midplane upward out of the chassis.

Installing the midplane

1. Install a midplane:

a. Insert the midplane into a slot in the processor mezzanine board.

b. Fasten the screws to secure the midplane into place.

2. Install the removed processor mezzanine board.

3. Install the chassis air baffle:

a. Place the chassis air baffle in the chassis.

b. Connect the disconnected supercapacitor extension cables, if any.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a drive backplane

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a drive backplane

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the drives attached to the backplane.

4. Remove the access panel. For more information, see "Removing the access panel."

5. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

6. Disconnect cables from the backplane.

7. Remove the drive backplane. Loosen the captive screws that secure the backplane, and then lift the backplane out of the chassis.

Installing a drive backplane

1. Install a drive backplane. Place the backplane in the slot and then fasten the captive screws.

2. Connect cables to the drive backplane.

3. Install the removed fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

4. Install the access panel. For more information, see "Installing the access panel."

5. Install the removed drives.

6. Rack-mount the server. For more information, see "Rack-mounting the server."

7. Connect the power cord. For more information, see "Connecting the power cord."

8. Power on the server. For more information, see "Powering on the server."

Installing PCIe modules and a riser card on PCIe riser connector 3

Guidelines

For more information, see "Replacing riser cards and PCIe modules."

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Procedure

1. Identify the position of the PCIe riser connector. For more information, see system board components in "Appendix A Server specifications."

2. Power off the server. For more information, see "Powering off the server."

3. Remove the server from the rack. For more information, see "Removing the server from a rack."

4. Remove the access panel. For more information, see "Removing the access panel."

5. Remove the chassis air baffle.

6. Remove the PCIe riser card blank. Lift the blank to remove it from the chassis.

7. Remove the dust cover from the riser connector on the processor mezzanine board. Lift the dust cover to remove it from the chassis.

8. Install a PCIe module to the riser card:

a. Open the retaining latch of the riser card.

b. Remove the PCIe module blank.

c. Install the PCIe module to the riser card. Insert the PCIe module into the PCIe slot along the guide rails, and then close the retaining latch.

9. Install the riser card installed with the PCIe module:

a. Unlock the riser card. Slide the locking tab to release the locking lever.

b. Inset the riser card into the PCIe riser connector along the guide rails, and then close the locking lever. The riser card will automatically slide into place.

WARNING!

For the riser card to be installed correctly, press the riser card over the riser card connector after the locking lever is closed.

10. Connect cables to the riser card or PCIe modules, if any.

11. Install the chassis air baffle.

12. Install the access panel. For more information, see "Installing the access panel."

13. Rack-mount the server. For more information, see "Rack-mounting the server."

14. Connect the power cord. For more information, see "Connecting the power cord."

15. Power on the server. For more information, see "Powering on the server."

Replacing riser cards and PCIe modules

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The server provides three PCIe riser connectors on the system board to connect riser cards, which hold PCIe modules. For more information about the connector locations, see system board components in "Appendix A Server specifications."

Guidelines

· If a processor is faulty or absent, the PCIe slots connected to it are unavailable. For more information about riser connectors on the system board, see system board components in "Appendix A Server specifications." For more information about PCIe slots on riser cards, see riser cards in "Appendix B Component specifications."

· You can install a PCIe module in a PCIe slot for a larger-sized PCIe module. For example, an LP PCIe module can be installed in a slot for an FHFL PCIe module.

· A PCIe slot can supply power to the installed PCIe module if the maximum power consumption of the module does not exceed 75 W. If the maximum power consumption exceeds 75 W, a power cord is required.

· The description for PCIe3.0 x8 is as follows:

¡ PCIe3.0: Third-generation signal speed.

¡ X8: Compatible bus bandwidth, including x8, x4, x2, and x1.

· By default, the connector width is x16 for standard PCIe module slots.

· Some types of PCIe modules (storage controllers, Ethernet network adapter, and converfed network adapter) require PCIe IO resources. Due to limited PCIe IO resources in the system, make sure the number of PCIe modules that require PCIe IO resources does not exceed 11. To identify the type of a PCIe module, use Compatibility Matrix by Component Model at

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a riser card and a PCIe module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the chassis air baffle.

5. Disconnect all cables that hinder the replacement, if any.

6. Remove the riser card installed with a PCIe module:

a. Remove the riser card. Slide the locking tab to release the locking lever.

b. Lift the locking lever, and then lift the riser card out of the chassis to remove the riser card.

7. Remove the PCIe module from the riser card. Open the retaining latch of the riser card, and then pull the PCIe module out of the slot.

Installing a riser card and a PCIe module

1. Install the PCIe module on the riser card:

a. Open the retaining latch of the riser card.

b. Remove the PCIe module blank.

c. Install the PCIe module to the riser card. Insert the PCIe module into the PCIe slot along the guide rails, and then close the retaining latch.

2. Install the riser card on the server:

a. Unlock the riser card. Slide the locking tab to release the locking lever.

b. Insert the riser card into the PCIe riser connector along the guide rails, and then, close the locking lever. The riser card will automatically slide into place.

WARNING!

For the riser card to be installed correctly, press the connector of the riser card after the locking lever is closed.

3. Connect cables to the riser card or PCIe modules, if any.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a storage controller and a power fail safeguard module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

For some storage controllers, you can order a power fail safeguard module to prevent data loss when power outage occurs.

A power fail safeguard module provides a flash card and a supercapacitor. When a system power failure occurs, this supercapacitor can provide power for a minimum of 20 seconds. During this interval, the storage controller transfers data from DDR memory to the flash card, where the data remains indefinitely or until the controller retrieves the data.

A supercapacitor has a lifespan of 3 to 5 years. If the lifespan of a supercapacitor expires, a supercapacitor exception might occur. The system notifies users of supercapacitor exceptions by using the following methods:

· For a PMC storage controller, the status of the flash card will become Abnormal_status code. You can check the status code to identify the exception. For more information, see HDM online help.

· For an LSI storage controller, the status of the flash card of the power fail safeguard module will become Abnormal.

You can also review log messages from HDM to identify supercapacitor exceptions.

For the power fail safeguard module to take effect, replace the supercapacitor before its lifespan expires.

The supercapacitor might have a low charge after the power fail safeguard module is installed or after the server is powered up. If the system displays that the supercapacitor has low charge, no action is required. The system will charge the supercapacitor automatically. You can view the status of the supercapacitor from the HDM or BIOS.

IMPORTANT:

After the supercapacitor replacement, verify that cache related settings are enabled for logical drives. For more information, see HDM online help.

Guidelines

You can install one or multiple standard storage controllers. When you install standard storage controllers, follow these restrictions and guidelines:

· Make sure the standard storage controllers are of the same vendor (PMC or LSI). For information about the available storage controllers and their vendors, visit the query tool at https://www.h3c.com/en/Support/Resource_Center/Technical_Documents/Severs/.

· Install standard storage controllers in PCIe slots in the following order: slots 6, 5, 2, 1, 4, and then 3. If a slot is installed with another module, install the standard storage controller in the next available slot. For information about PCIe slot locations, see the rear panel view in "Appendix A Server specifications."

· If you install multiple storage controllers, connect each controller to the drive backplane of the corresponding bay: lower-numbered controller to lower-numbered bay and higher-numbered controller to higher-numbered bay. For information about drive bay locations, see the front panel view in "Appendix A Server specifications."

· To install both a RAID controller and an HBA controller, install the RAID controller to the lower-numbered slot and the HBA controller to the higher-numbered slot.

· To install both an 8i standard storage controller and a 16i standard storage controller, install the 16i storage controller to the lower-numbered slot and the 8i to the higher-numbered slot.

Use Table 6 to identify the supercapacitor available for a storage controller.

Table 11 Standard storage controller and supercapacitor compatibility matrix

Standard storage controller	Supercapacitor	Supercapacitor installation location
RAID-LSI-9361-8i(1G)-A1	BAT-LSI-G2-A	In the supercapacitor container on the air baffle
RAID-LSI-9361-8i(2G)-1-X	BAT-LSI-G2-A
RAID-LSI-9460-8i(2G)	BAT-LSI-G3-A
RAID-LSI-9460-8i(4G)
RAID-LSI-9460-16i(4G)
RAID-LSI-9560-LP-16i-8GB
RAID-LSI-9560-LP-8i-4GB

To replace the storage controller with a controller of a different model, back up data in the drives of the storage controller and clear RAID configuration.

To replace the storage controller with a controller of the same model, make sure the following configurations remain the same after replacement:

· Storage controller operating mode.

· Storage controller firmware version.

· BIOS boot mode.

· First boot option in Legacy mode.

For more information, see the storage controller user guide for the server and the BIOS user guide for the server.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a standard storage controller and a power fail safeguard module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Disconnect all cables from the standard storage controller.

5. Remove the standard storage controller:

a. Remove the riser card where the standard storage controller resides. For more information, see "Removing a riser card and a PCIe module."

b. Remove the standard storage controller. For more information, see "Removing a standard storage controller and a power fail safeguard module."

6. Remove the power fail safeguard module or super capacitor, if any:

a. Remove the flash card on the storage controller, if any. Remove the screws that secure the flash card, and then remove the flash card.

b. Remove the supercapacitor. Pull the clip on the supercapacitor holder, and take the supercapacitor out of the holder.

c. Remove the supercapacitor holder. Lift the retaining latch at the bottom of the supercapacitor holder, and slide the holder to remove it.

Installing a standard storage controller and a power fail safeguard module

1. Install the supercapacitor on the supercapacitor holder:

a. Install the supercapacitor holder on the chassis air baffle. Place the supercapacitor holder in the chassis and slide it to the server rear until it snaps into place.

b. Connect one end of a supercapacitor extension cable to the supercapacitor.

c. Install the supercapacitor to the supercapacitor holder. Tilt the supercapacitor and insert one end of the supercapacitor into the holder. Pull the clip on the holder and insert the other end into the holder, and then release the clip.

2. Install the removed flash card on the power fail safeguard module:

a. Install the internal threaded studs supplied with the power fail safeguard module on the standard storage controller.

b. Install the flash card on the standard storage controller. Insert the flash card connector into the socket and use screws to secure the flash card on the storage controller.

3. Install the standard storage controller on the riser card. For more information, see "Installing a standard storage controller and a power fail safeguard module."

4. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

5. Connect the other end of the supercapacitor extension cable to the standard storage controller.

6. Install the access panel. For more information, see "Installing the access panel."

Replacing a standard PCIe network adapter

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Guidelines

To install a standard PCIe network adapter, a riser card is required. For more information about riser card and PCIe module compatibility, see riser cards in "Appendix B Component specifications."

You cannot install PCIe network adapter NIC-GE-4P-360T-B2-1 in PCIe slot 1, 7, or 13. For cabling simplicity, do not install any other standard PCIe network adapter in PCIe slot 1, 7, or 13. For more information about PCIe slot locations, see the rear panel view in "Appendix A Server specifications."

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a standard PCIe network adapter

1. Power off the server. For more information, see "Powering off the server."

2. Disconnect cables from the standard PCIe network adapter.

3. Remove the server from the rack. For more information, see "Removing the server from a rack."

4. Remove the access panel. For more information, see "Removing the access panel."

5. Disconnect all cables that hinder the replacement, if any.

6. Remove the riser card where the PCIe network adapter resides. For more information, see "Removing a riser card and a PCIe module."

7. Remove the PCIe network adapter. For more information, see "Removing a standard PCIe network adapter."

Installing a standard PCIe network adapter

For more information, see "Installing a riser card and a PCIe module."

Replacing an OCP network adapter

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The OCP network adapter supports NCSI. By default, port 1 on the OCP network adapter acts as the HDM shared network port. You can configure another port on the OCP network adapter as the HDM shared network port from the HDM Web interface. For more information, see HDM online help.

Guidelines

· To install an OCP network adapter, an OCP adapter is required. For information about the OCP adapter connector on the system board, see system board components in "Appendix A Server specifications."

· The OCP network adapter supports hot swapping. For more information about operating systems that support hot swapping, use the component compatibility lookup tool at http://www.h3c.com/en/home/qr/default.htm?id=66.

¡ For operating systems that support hot swapping of OCP network adapters:

- Only OCP network adapters installed before the server is powered on can be hot swapped. To hot swap an OCP network adapter, make sure the new network adapter is the same model as the old OCP network adapter. To replace with an OCP network adapter of a different model, power off the server first.

- OCP network adapters installed after the server is powered on cannot be hot swapped. To replace such an OCP network adapter, first power off the server.

¡ For operating systems that do not support hot swapping of OCP network adapters, to replace an OCP network adapter, first power off the server.

NOTE:

Power off the server if you are expanding an OCP network adapter.

The OCP network adapter supports predictive hot swapping with the following two methods:

· Press the ATTN BUTTON button, as described in this section.

· Execute commands in the operating system.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing an OCP network adapter

1. Identify operating systems that support hot swapping of the OCP network adapter. For operating systems compatible with the server, visit the query tool at https://www.h3c.com/en/Support/Resource_Center/Technical_Documents/Severs/.

2. Power off the server if hot swapping of the OCP network adapter is not supported. For more information, see "Powering off the server."

3. Disconnect all cables from the OCP network adapter.

4. Remove the OCP network adapter:

a. Short Press the ATTN BUTTON button on the OCP network adapter until both the POWER and ATTN BUTTON LEDs turn off. It takes about 10 seconds for the POWER LED to turn off from flashing green.

If the OCP network card is not configured, a short press of the ATTN button will have no effect.

For more information about the POWER and ATTN BUTTON LEDs on the OCP network adapter, see the rear panel in "Appendix A Server specifications."

b. Loosen the captive screws on the OCP network adapter and pull the OCP network adapter out from the chassis.

Installing an OCP network adapter

1. Install the OCP network adapter:

a. Insert the OCP network adapter into the slot and fasten the captive screws on it.

b. Press the ATTN BUTTON button on the OCP network adapter until the POWER LED turns steady green from flashing green.

2. Connect cables to the OCP network adapter.

3. (Optional.) Power on the server. For more information, see "Powering on the server."

4. (Optional.) Configure a network port on the OCP network adapter as an HDM shared network port.

Replacing an OCP adapter

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing an OCP adapter

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the OCP network adapter.

4. Remove all power supplies.

5. Remove the access panel. For more information, see "Removing the access panel."

6. Remove all fans.

7. Remove the fan cage.

8. Remove the chassis air baffle.

9. Remove the processor mezzanine board.

10. Remove all riser cards.

11. Remove the riser card cage.

12. Remove the system board:

a. Loosen the two captive screws on the system board.

b. Hold the system board by its handle and slide the system board toward the server front. Then, lift the system board to remove it from the chassis.

13. Remove the OCP adapter:

a. Remove all fastening screws on the OCP adapter.

b. Lift the OCP adapter to remove it from the chassis.

Installing an OCP adapter

1. Install the OCP adapter:

a. Install the OCP adapter onto the OCP adapter connector.

b. Fasten the screws to secure the OCP adapter.

2. Install the system board:

a. Slide the system board toward the server rear until the connectors (for example, USB connectors and the Ethernet port) on it are securely seated.

b. Fasten the two captive screws to secure the system board.

c. Disconnect all cables from the system board.

3. Install the riser card cage.

4. Install removed riser cards.

5. Install the removed fans.

6. Install the fan cage.

7. Install the processor system board.

8. Install the chassis air baffle.

9. Install removed power supplies.

10. Install the OCP network adapter.

11. Rack-mount the server. For more information, see "Rack-mounting the server."

12. Connect the power cord. For more information, see "Connecting the power cord."

13. Power on the server. For more information, see "Powering on the server."

Replacing a GPU module

Guidelines

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The GPU modules supported by the server are shown in Table 7.

Table 12 GPU module and riser card compatibility

GPU module type	GPU module	Form factor	Installation requirements	Power cord connection method
With a power cord	GPU-T4	LP, single-slot wide	N/A	N/A
Without a power cord	GPU-A30-24G	FHFL, dual-slot wide	Requires an H3C dedicated power cord. For more information, contact Technical Support	See "Connecting the GPU power cord"
	GPU-A100-80G	FHFL, dual-slot wide
	GPU-V100S-32G	FHFL, dual-slot wide

A riser card is required when you install a GPU module. You can install a GPU only in a PCIe3.0 ×16 slot that supports the 16, 8, 4, 2, and 1 link widths.

Use Table 8 to determine the available riser cards and PCIe slots for GPU module installation. For information about the locations of PCIe riser connectors, see system board components in "Appendix A Server specifications." For information about PCIe slots, see "Appendix B Component specifications." For more information about PCIe slot locations, see the rear panel view in "Appendix A Server specifications."

Table 13 GPU module and riser card compatibility

Riser card	PCIe riser connector	PCIe slot
RC-3FHHL-2U-SW-G5	Connector 1	Slot 2, 4, or 6
RC-3FHHL-2U-SW-G5	Connector 2	Slot 8, 10, or 12
RC-3FHHL-2U-SW-G5-1	Connector 3	Slot 14, 15, or 16

You can install single-slot wide GPU modules or dual-slot wide GPU modules on the server, but cannot install both of them on the same server.

· To install multiple dual-slot wide modules (a maximum of three), install them in PCIe slots in the following order: slots 2, 8, and then 14.

· To install multiple single-slot wide modules (a maximum of nine), install them in PCIe slots in the following order: slots 2, 4, 6, 8, 10, 12, 14, 15, and then 16.

As a best practice, install GPU modules of the same model.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a GPU module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Disconnect all cables that hinder the replacement, if any.

5. Remove the riser card where the GPU module resides. For more information, see "Removing a riser card and a PCIe module."

6. Remove the GPU module from the riser card:

a. Disconnect the cable from the GPU module.

b. Open the retaining latch on the riser card, and pull the GPU module out from the slot.

Installing a GPU module

1. Install a GPU module on the riser card:

a. Insert the GPU module into the PCIe slot along the guide rails, and then close the retaining latch.

b. Connect one end of the GPU module power cord to the power connector on the GPU module according to the label on the power cord.

2. Reconnect other cables to the riser card.

3. Install the riser card on the server. Install the riser card onto the PCIe riser connector. Connect the other end of the GPU power cord to the power connector on the riser card.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a SATA M.2 SSD

Guidelines

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

An M.2 expander module is required for SATA M.2 SSDs. You can install the expander module in a PCIe slot provided by a riser card.

As a best practice to ensure high availability, if you are installing two SATA M.2 SSDs, install SATA M.2 SSDs of the same model.

As a best practice, use SATA M.2 SSDs to install the operating system.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a SATA M.2 SSD

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card on which the SATA M.2 SSD expander module resides:

a. Disconnect the cable from the SATA M.2 SSD expander module.

b. Remove the riser card. For more information, see "Removing the riser card cage."

5. Remove the SATA M.2 SSD expander module from the riser card. For more information, see "Removing a SATA M.2 SSD expander module."

6. Remove SATA M.2 SSDs from the expander module. Remove the screw that secures an SSD on the expander module and then pull the SSD out.

Installing a SATA M.2 SSD

1. Install the SATA M.2 SSD to the SATA M.2 SSD expander module. Insert the connector of the SSD into the socket and then use the screw to secure the SSD into place.

2. Install the expander module on a riser card. For more information, see "Installing a SATA M.2 SSD expander module."

3. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing a SATA M.2 SSD expander module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a SATA M.2 SSD expander module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card on which the SATA M.2 SSD expander module resides:

a. Disconnect the cable from the SATA M.2 SSD expander module.

b. Remove the riser card. For more information, see "Removing a riser card and a PCIe module."

5. Remove the SATA M.2 SSD expander module from the riser card. For more information, see "Removing a SATA M.2 SSD expander module."

6. Remove all SATA M.2 SSDs. Remove the screws that secures the SSDs on the expander module and then pull the SSDs out.

Installing a SATA M.2 SSD expander module

1. Install SATA M.2 SSDs to the SATA M.2 SSD expander module. Insert the connector of an SSD into the socket and then use the screw to secure the SSD into place.

2. Install the expander module to a riser card. For more information, see "Installing a SATA M.2 SSD expander module."

3. Install the riser card to the server. For more information, see "Installing a riser card and a PCIe module."

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing an SD card

Guidelines

Two SD cards installed on a dual SD extended module create a RAID 1 volume by default. To avoid storage space waste, install two SD cards with the same capacity.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing an SD card

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card cage that hinders the replacement.

5. Press the SD card to release it and then pull the SD card out of the slot.

Installing an SD card

1. Install a new SD card. Insert the SD card into the slot and gently press the SD card to secure it in the slot.

2. Install the removed riser card cage.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Replacing a dual SD card extended module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a dual SD card extended module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card cage that might hinder the replacement.

5. Remove the dual SD card extended module. Press the top clip and the side clip on the dual SD card extended module and pull the module out of the connector.

6. Remove all SD cards from the extended module. Press an SD card to release it and then pull the SD card out of the slot.

Installing a dual SD card extended module

1. Install SD cards on the dual SD card extended module. Insert an SD card into the slot and gently press the SD card to secure it in the slot.

2. Install the dual SD card extended module on the server. Insert the extender module into the slot along the guide rails until you hear a click.

3. Install the removed riser card cage.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing an NVMe SSD expander module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing an NVMe SSD expander module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the riser card where the NVMe SSD expander module resides:

a. Disconnect cables from the NVMe SSD expander module.

b. Remove the riser card. For more information, see "Removing a riser card and a PCIe module."

5. Remove the NVMe SSD expander module. For more information, see "Removing a riser card and a PCIe module."

Installing an NVMe SSD expander module

1. Install a new NVMe SSD expander module on the riser card. For more information, see "Installing a riser card and a PCIe module."

2. Install the riser card on the server. For more information, see "Installing a riser card and a PCIe module."

3. Connect cables to the NVMe SSD expander module.

4. Install the access panel. For more information, see "Installing the access panel."

5. Rack-mount the server. For more information, see "Rack-mounting the server."

6. Connect the power cord. For more information, see "Connecting the power cord."

7. Power on the server. For more information, see "Powering on the server."

Replacing the LCD smart management module

For more information about how to use the LCD smart management module, see LCD Smart Management Module User Guide.

Guidelines

Identify the installation location for the LCD smart management module. For more information, see the front panel view in "Appendix A Server specifications."

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the LCD smart management module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

5. Remove the LCD smart management module:

a. Disconnect the LCD module cable from the system board.

b. Use a T10 Torx screwdriver or tweezers to press the clip of the LCD smart management module and pull the module out from the slot.

Install the LCD smart management module

1. Install the LCD smart management module:

a. Connect one end of the LCD module cable to the LCD smart management module.

b. Push the LCD smart management module into the slot until it snaps into place.

c. Connect the other end of the cable to the LCD smart management module connector on the system board.

2. Install the fan cage. Place the fan cage in the chassis and then close the locking levers at the two ends of the fan cage.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Installing and setting up a TCM or TPM

Trusted platform module (TPM) is a microchip embedded in the system board. It stores encryption information (such as encryption keys) for authenticating server hardware and software. The TPM operates with drive encryption programs such as Microsoft Windows BitLocker to provide operating system security and data protection. For information about Microsoft Windows BitLocker, visit the Microsoft website at http://www.microsoft.com.

Trusted cryptography module (TCM) is a trusted computing platform-based hardware module with protected storage space, which enables the platform to implement password calculation.

Installation and setup flowchart

Figure 21 TCM/TPM installation and setup flowchart

Guidelines

· Do not remove an installed TCM or TPM. Once installed, the module becomes a permanent part of the system board.

· If you want to replace the failed TCM or TPM, remove the system board, and then contact H3C Support to replace the TCM or TPM and the system board.

· When installing or replacing hardware, H3C technicians cannot configure the TCM or TPM or enter the recovery key. For security reasons, only the user can perform the tasks.

· When replacing the system board, do not remove the TCM or TPM from the system board. H3C will provide a TCM or TPM with a spare system board for the replacement.

· Any attempt to remove an installed TCM or TPM from the system board breaks or disfigures the TCM or TPM security rivet. Upon locating a broken or disfigured rivet on an installed TCP or TPM, administrators should consider the system compromised and take appropriate measures to ensure the integrity of the system data.

· H3C is not liable for blocked data access caused by improper use of the TCM or TPM. For more information, see the encryption technology feature documentation provided by the operating system.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Installing a TCM or TPM

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove all riser cards.

5. Remove the riser card cage.

6. Install the TCM or TPM.

The installation procedure is the same for a TPM and a TCM. The following information uses a TPM to show the procedure:

a. Press the TPM into the TPM connector on the system board.

b. Insert the rivet pin.

c. Insert the security rivet into the hole in the rivet pin and press the security rivet until it is firmly seated.

7. Install the removed riser card cage.

8. Install the removed riser cards.

9. Install the access panel. For more information, see "Installing the access panel."

10. Rack-mount the server. For more information, see "Rack-mounting the server."

11. Connect the power cord. For more information, see "Connecting the power cord."

12. Power on the server. For more information, see "Powering on the server."

Enabling the TCM or TPM in the BIOS

1. Enter the BIOS utility. For information about how to enter the BIOS utility, see the BIOS user guide.

2. Select Advanced > Trusted Computing, and press Enter.

3. Enable TCM or TPM. By default, the TCM and TPM are enabled for a server.

If the server is installed with a TPM, perform the following steps to enable TPM:

a. Select TPM State > Enabled, and press Enter.

b. Click Device Select, press Enter, and then select a TPM version.

If the TPM is installed with a TCM, perform the following steps to enable TCM:

c. Select TCM State > Enabled, and press Enter.

d. Click Device Select, press Enter, and then select a TPM version.

For more information, see the BIOS user guide for the server.

4. Log in to HDM to verify that the TCM or TPM is operating correctly. For more information, see HDM online help.

Configuring encryption in the operating system

For more information about this task, see the encryption technology feature documentation that came with the operating system.

The recovery key/password is generated during BitLocker setup, and can be saved and printed after BitLocker is enabled. When using BitLocker, always retain the recovery key/password. The recovery key/password is required to enter Recovery Mode after BitLocker detects a possible compromise of system integrity or firmware or hardware change.

For security purposes, follow these guidelines when retaining the recovery key/password:

· Always store the recovery key/password in multiple locations.

· Always store copies of the recovery key/password away from the server.

· Do not save the recovery key/password on the encrypted hard drive.

For more information about Microsoft Windows BitLocker drive encryption, visit the Microsoft website at http://technet.microsoft.com/en-us/library/cc732774.aspx.

Replacing the NVMe VROC module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

Removing the NVMe VROC module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the processor mezzanine board, if any.

5. Remove the NVMe VROC module. Hold the ring part of the NVMe VROC module and pull the module out.

Installing the NVMe VROC module

1. Install a new NVMe VROC module. Insert the NVMe VROC module onto the NVMe VROC module connector on the system board.

2. Installed the removed processor mezzanine board, if any.

3. Install the access panel. For more information, see "Installing the access panel."

4. Rack-mount the server. For more information, see "Rack-mounting the server."

5. Connect the power cord. For more information, see "Connecting the power cord."

6. Power on the server. For more information, see "Powering on the server."

Replacing the system battery

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

The server comes with a system battery (BR2032) installed on the system board, which supplies power to the real-time clock and has a lifespan of 3 to 5 years. If the server no longer automatically displays the correct date and time, you might need to replace the battery. The server supports only the R2032 battery.

NOTE:

The BIOS will restore to the default settings after the replacement. You must reconfigure the BIOS to have the desired settings, including the system date and time. For more information, see the BIOS user guide for the server.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing the system battery

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the system battery. Pinch the system battery by its top edge and lift the battery out of the battery holder slowly.

NOTE:

For environment protection purposes, dispose of the used-up system battery at a designated site. For more information about safety, see "Battery safety."

Installing the system battery

1. Install the system battery. Insert the system battery into the system battery holder on the management module.

2. Install the access panel. For more information, see "Installing the access panel."

3. Rack-mount the server. For more information, see "Rack-mounting the server."

4. Connect the power cord. For more information, see "Connecting the power cord."

5. Power on the server. For more information, see "Powering on the server."

6. Access the BIOS to reconfigure the system date and time. For more information, see the BIOS user guide for the server.

Replacing a fan module

WARNING!

To avoid bodily injury from hot surfaces, allow the server and its internal modules to cool before touching them.

CAUTION:

To avoid component damage or server power-off caused by overtemperature, install a fan module on the server within 30 seconds after you remove one.

The fan modules are hot swappable.

For the server to operate correctly, make sure all the four fan modules are present.

If sufficient space is available for replacement, you can replace a fan module without removing the server from the rack.

Removing a fan module

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove a fan module. Lift the fan module handle and hold the handle to pull the fan module out of the slot.

Installing a fan module

1. Install a new fan module. Insert the fan module into the slot and close the fan module handle.

2. Install the access panel. For more information, see "Installing the access panel."

3. Rack-mount the server if the server has been removed. For more information, see "Rack-mounting the server."

4. Connect the power cord if the power cord has been disconnected. For more information, see "Connecting the power cord."

5. Power on the server if the server has been powered off. For more information, see "Powering on the server."

Replacing a power supply

The power supplies are hot swappable.

Guidelines

· If more than one operating power supply is present and the server rear has sufficient space for replacement, you can replace a power supply without powering off the server.

· If only one power supply is present, install the new power supply in the slot where the original one is installed.

· Make sure the installed power supplies are the same model. HDM will perform power supply consistency check and generate a minor alarm if the power supply models are different.

· To avoid hardware damage, do not use third-party power supplies.

· The server supports N+N power supply redundancy.

· The power supplies have an overtemperature protection mechanism. A power supply stops working when an overtemperature occurs and automatically recovers when the overtemperature condition is removed.

NOTE:

For information about power supply specifications, see the user manual for each power supply.

Prerequisites

Take the following ESD prevention measures:

· Wear antistatic clothing.

· Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.

· Do not wear any conductive objects, such as jewelry or watches.

When you replace a component, examine the slot and connector for damages. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Removing a power supply

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack. For more information, see "Removing the server from a rack."

3. Remove the power cord from the power supply:

a. Press the tab to disengage the ratchet from the tie mount, slide the cable clamp outward, and then release the tab.

b. Open the cable clamp and remove the power cord out of the clamp.

c. Unplug the power cord.

4. Uninstall the CMA on the side of the power supply, if any:

a. Take out cables that hinder the replacement from the cable baskets of the CMA. During this operation, make sure cables required for server operation remain connected.

b. Press the tab on the CMA connector next to the power supply and then pull the connector out.

5. Remove the power supply. Holding the power supply by its handle and pressing the retaining latch with your thumb, pull the power supply slowly out of the slot.

Installing a power supply

1. Install a new power supply. Push the power supply into the slot until it snaps into place.

2. Installed the removed CMA, if any.

3. Rack-mount the server if the server has been removed. For more information, see "Rack-mounting the server."

4. Connect the power cord if the power cord has been disconnected. For more information, see "Connecting the power cord."

5. Power on the server if the server has been powered off. For more information, see "Powering on the server."

Replacing a chassis ear

The procedure is the same for the left and right chassis ears. This section uses the left chassis ear as an example.

Removing a chassis ear

1. Power off the server. For more information, see "Powering off the server."

2. Remove the server from the rack, if the space over the server is insufficient. For more information, see "Removing the server from a rack."

3. Remove the access panel. For more information, see "Removing the access panel."

4. Remove the fan cage. Open the locking levers at the two ends of the fan cage, and then lift the fan cage out of the chassis.

5. Remove the chassis air baffle. Hold and press the air baffle by the blue notches at both ends, and lift the air baffle out of the chassis.

6. Remove riser card 3, if any.

7. Remove the processor mezzanine board, if any.

8. Remove the front I/O component cable assembly:

a. Disconnect the front I/O component cable assembly from the system board.

b. Remove the screw that secures the cable protection plate, slide the plate toward the rear of the chassis, and then remove it from the chassis.

c. Pull the I/O component cable out of the slot.

9. Remove the chassis ear. Remove the screws that secure the left chassis ear, and then pull the chassis ear until it is removed.

Installing a chassis ear

1. Install a chassis ear. Attach the chassis ear to the corresponding side of the server, and use screws to secure the chassis ear into place.

2. Install the front I/O component cable assembly:

a. Insert the front I/O component cable assembly into the cable cutout.

b. Install the cable protection plate on the chassis.

c. Connect the front I/O component cable assembly to the front I/O connector on the system board.

3. Install the fan cage.

4. Install the removed processor mezzanine board.

5. Install the removed riser card 3.

6. Install the chassis air baffle.

7. Install the access panel. For more information, see "Installing the access panel."

8. Rack-mount the server. For more information, see "Rack-mounting the server."

9. Connect the power cord. For more information, see "Connecting the power cord."

10. Power on the server. For more information, see "Powering on the server."

Connecting internal cables

Guidelines

Follow these guidelines when connecting the internal cables:

· Properly route the internal cables and make sure they are not squeezed.

· Do not route the cables above the removable components, such as DIMMs.

· Route the internal cables without hindering installation or removal of other components or hindering other internal components.

· Route the cables neat and tidy in their own fixed spaces. Make sure the cables will not be squeezed or scratched by other internal components.

· Do not pull the connectors when routing the cables.

· Do not use a cable tie to bundle an excessive number of cables.

· Appropriately bind long cables. Coil and use cable ties to secure unused cables.

· Connect the drive cables until they click into place.

· Remove the cap (if any) from the target cable connector before connecting a cable to it.

· If you cannot identify the cables by labels provided with the cables, apply new labels to cables for easy identification.

Connecting drive cables

The section describes cabling only for typical drive configurations. For detailed cabling solutions for drives, including the connections between the cables and connectors, see Drive Configurations and Cabling Guide.

Connecting power cords

Connecting power cords for 8SFF drive backplanes

The cable connection methods are similar for an 8SFF drive backplane and 8SFF UniBay drive backplane.

Figure 22 Connecting power cords for 8SFF drive backplanes

(1) Power cord of the 8SFF drive backplane in drive bay 1
(2) Power cord of the 8SFF drive backplane in drive bay 2
(3) Power cord of the 8SFF drive backplane in drive bay 3
(4) Power cord of the 8SFF UniBay drive backplane in drive bay 4
(5) Power cord of the 8SFF UniBay drive backplane in drive bay 5
(6) Power cord of the 8SFF UniBay drive backplane in drive bay 6

Connecting power cords for 25SFF drive backplanes

Figure 23 Connecting power cords for 25SFF drive backplanes

(1) Power cord 1 of the 25SFF drive backplane at the upper layer
(2) Power cord 2 of the 25SFF drive backplane at the upper layer
(3) Power cord 3 of the 25SFF drive backplane at the upper layer
(4) Power cord 1 of the 25SFF drive backplane at the lower layer
(5) Power cord 2 of the 25SFF drive backplane at the lower layer
(6) Power cord 3 of the 25SFF drive backplane at the lower layer

Connecting signal cables

Connecting signal cables for 8SFF drive backplanes

The cable connection methods are similar for an 8SFF drive backplane and 8SFF UniBay drive backplane.

Figure 24 Connecting signal cables for 8SFF drive backplanes

(1) AUX signal cable of the 8SFF drive backplane in drive bay 1
(2) AUX signal cable of the 8SFF drive backplane in drive bay 2
(3) AUX signal cable of the 8SFF drive backplane in drive bay 3
(4) AUX signal cable of the 8SFF UniBay drive backplane in drive bay 4
(5) AUX signal cable of the 8SFF UniBay drive backplane in drive bay 5
(6) AUX signal cable of the 8SFF UniBay drive backplane in drive bay 6

Connecting signal cables for 25SFF drive backplanes

Figure 25 Connecting signal cables for 25SFF drive backplanes

(1) AUX signal cable of the 25SFF drive backplane at the upper layer
(2) AUX signal cable of the 25SFF drive backplane at the lower layer

Connecting data cables

Connecting SAS/SATA data cables

The SAS/SATA data cable connection methods are similar for an 8SFF drive backplane and 8SFF UniBay drive backplane.

Figure 26 Using a SATA data cable to connect the 8SFF drive backplane to the embedded VROC controller

Figure 27 Using a SAS/SATA data cable to connect the 8SFF drive backplane to the standard 8i controller

Figure 28 Using SAS/SATA data cables to connect two 8SFF drive backplanes to the standard 16i controller

(1) SAS/SATA data cable of the 8SFF drive backplane in drive bay 1
(2) SAS/SATA data cable of the 8SFF drive backplane in drive bay 2

Figure 29 Using SAS/SATA data cables to connect the 8SFF drive backplane and 25SFF drive backplane to the standard 16i controller

(1) SAS/SATA data cable of the 8SFF drive backplane in drive bay 4
(2) SAS/SATA data cable of the 25SFF drive backplane at the upper layer

Figure 30 Using SAS/SATA data cables to connect two 25SFF drive backplanes to the standard 16i controller

(1) SAS/SATA data cable of the 25SFF drive backplane at the upper layer
(2) SAS/SATA data cable of the 25SFF drive backplane at the lower layer

Figure 31 Using a SAS/SATA data cable to connect the 25SFF drive backplane to an 8SFF drive backplane

Figure 32 Using a SAS/SATA data cable to connect the 25SFF drive backplane to the standard 8i controller

Connecting NVMe data cables

Figure 33 Using NVMe data cables to connect the 8SFF drive backplane to the processor mezzanine board

Figure 34 Using NVMe data cables to connect the 25SFF drive backplane to the processor mezzanine board

Figure 35 Using NVMe data cables to connect the 8SFF UniBay drive backplane to the NVMe SSD expander module

(1) and (2) NVMe data cables for NVMe SSD expander module in slot 10
(3) and (4) NVMe data cables for NVMe SSD expander module in slot 12

Figure 36 Using NVMe data cables to connect the 25SFF drive backplane to the NVMe SSD expander module

(1) and (2) NVMe data cables for NVMe SSD expander module in slot 10
(3) and (4) NVMe data cables for NVMe SSD expander module in slot 12

Connecting supercapacitor extension cables

Figure 37 Connecting supercapacitor extension cables

(1) Supercapacitor extension cable 1	(2) Supercapacitor extension cable 2
(3) Supercapacitor extension cable 3

NOTE:

You can install a supercapacitor in any slot of the air baffle.

Connecting the GPU power cord

Figure 38 Connecting the GPU power cord

Connecting the SATA M.2 SSD cable

Use a cable to connect the SATA M.2 SSD to a SATA M.2 connector on the system board.

Figure 39 Connecting the SATA M.2 SSD cable

Connecting the LCD smart management module cable

Figure 40 Connecting the LCD smart management module cable

Connecting cables to chassis ears

Figure 41 Connecting cables to chassis ears

(1) Left chassis ear cable	(2) Right chassis ear cable

Maintenance

The following information describes the guidelines and tasks for daily server maintenance.

Guidelines

· Keep the equipment room clean and tidy. Remove unnecessary devices and objects from the equipment room.

· Make sure the temperature and humidity in the equipment room meet the server operating requirements.

· Regularly check the server from HDM for operating health issues.

· Keep the operating system and software up to date as required.

· Make a reliable backup plan:

¡ Back up data regularly.

¡ If data operations on the server are frequent, back up data as needed in shorter intervals than the regular backup interval.

¡ Check the backup data regularly for data corruption.

· Stock spare components on site in case replacements are needed. After a spare component is used, prepare a new one.

· Keep the network topology up to date to facilitate network troubleshooting.

Maintenance tools

The following are major tools for server maintenance:

· Temperature humidity meter—Monitors the operating environment of the server.

· HDM and UniSystem—Monitors the operating status of the server.

Maintenance tasks

Observing LED status

Observe the LED status on the front and rear panels of the server to verify that the server modules are operating correctly. For more information about the status of the front and rear panel LEDs, see "Appendix A Server specifications."

Monitoring the temperature and humidity in the equipment room

Use a hygrothermograph to monitor the temperature and humidity in the equipment room.

The temperature and humidity in the equipment room must meet the server requirements described in "Environment requirements."

Examining cable connections

Verify that the cables and power cords are correctly connected.

Guidelines

· Do not use excessive force when connecting or disconnecting cables.

· Do not twist or stretch the cables.

· Organize the cables appropriately. For more information, see "Cabling guidelines."

Checklist

· The cable type is correct.

· The cables are correctly and firmly connected and the cable length is appropriate.

· The cables are in good condition and are not twisted or corroded at the connection point.

· Log and sensor information:

· Log information:

¡ Event logs.

¡ HDM audit logs and update logs.

¡ SDS logs.

¡ Diagnostics logs.

For information about how to collect log information, see HDM and iFIST online help.

· Sensor information.

To collect the sensor information, you must log in to the HDM Web interface. For more information, see HDM online help.

· Product serial number.

· Product model and name.

· Snapshots of error messages and descriptions.

· Hardware change history, including installation, replacement, insertion, and removal of hardware.

· Third-party software installed on the server.

· Operating system type and version.

H3C UniServer R6900 G5 Server User Guide-6W101

Safety information

Preventing electrostatic discharge

Grounding methods to prevent electrostatic discharge

Corrosive gas concentration requirements

Requirements for the data center equipment room

Requirements for the non-data center equipment room

Guidelines for controlling corrosive gases

Requirements for the data center equipment room

Requirements for the non-data center equipement room

Guidelines for controlling cleanliness

About this task

Procedure

About this task

Procedure

Guidelines

Procedure

Securing cables to cable management brackets

Securing cables to slide rails by using cable straps

Powering on the server by pressing the power on/standby button

Powering on the server from the HDM Web interface

Powering on the server from the remote console interface

Configuring automatic power-on

Powering off the server from its operating system

Powering off the server by pressing the power on/standby button

Powering off the server forcedly by pressing the power on/standby button

Powering off the server from the HDM Web interface

Powering off the server from the remote console interface

Operating memory frequency

Guidelines for installing only DDR4 DIMMs

Guidelines for mixture installation of PMem 200 and DDR4 DIMMs

Adding an NVMe drive