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 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.

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

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

· 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 all 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.

· 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 blanks to fill empty rack units.

· 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 four people are required to safely load or unload a rack. A fifth person might be required to help align the server if the server is installed higher than the chest level.

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 the 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.

· Make sure you are reliably grounded when touching an electrostatic-sensitive component or assembly.

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, static dissipative shoes, and antistatic gloves.

· 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.

¡ PCIe riser connectors.

¡ 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 riser connectors, PCIe slots, drive bays, or power supply slots empty.

· Install rack blanks to cover unused rack spaces.

Battery safety

The server's system board contains a system battery, which is designed with a lifespan of 5 to 10 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.

Laser safety

Do not stare into any fiber port or view directly with non-attenuating optical instruments when the server has power. The laser light emitted from the fiber port might hurt your eyes.

Preparing for installation

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

Installation tools

Table 2 lists the tools that you might use during installation.

Table 2 Installation tools

Picture	Name	Description
	T25 Torx screwdriver	For captive screws inside chassis ears.
	T30 Torx screwdriver	For captive screws on processor heatsinks.
	T15 Torx screwdriver (shipped with the server)	For screws on access panels.
	T10 Torx screwdriver (shipped with the server)	For screws on PCIe module blanks or riser card blanks.
	Flat-head screwdriver	For replacing the system battery.
	Phillips screwdriver	For screws on SATA M.2 SSDs.
	Cage nut insertion/extraction tool	For insertion and extraction of cage nuts in rack posts.
	Diagonal pliers	For clipping insulating sleeves.
	Paper knife	For unwrapping the server.
	Tape measure	For distance measurement.
	Multimeter	For resistance and voltage measurement.
	ESD wrist strap	For ESD prevention when you operate the server.
	Antistatic gloves	For ESD prevention when you operate the server.
	Antistatic clothing	For ESD prevention when you operate the server.
	Ladder	For high-place operations.
	Interface cable (such as an Ethernet cable or optical fiber)	For connecting the server to an external network.
	Monitor (such as a PC)	For displaying the output from the server.

Rack requirements

IMPORTANT:

As a best practice 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, please perform an 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 60 mm (2.36 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.

The installation limits for a rack vary by rack depth. For more information, see Table 3. As a best practice to avoid potential issues, contact Technical Support for on-site surveys.

Table 3 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. As a best practice, contact H3C Support to determine the installation site of PDUs or change PDU size. If the slide rails cannot be installed, use trays or other tools to support the server.
1100 mm (43.31 in)	Make sure the CMA does not hinder PDUs at the server rear before installing the H3C CMA. If the CMA hinders PDU installation, change a rack with larger depth or adjust the installation site of PDUs.
1200 mm (47.24 in)	Make sure the CMA does not hinder PDUs or the cabling. If the CMA hinders PDU installation or cabling, change the installation site of PDUs. For detailed installation suggestions, see Figure 1.

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

(1) Rack depth 1200 mm (47.24 in)

(2) More than 60 mm (2.36 in) between the rack front posts and the front rack door

(3) 800 mm (31.50 in) between the rack front posts and the rear of the chassis, with handles of the power supplies not shown

(4) Server depth with chassis ears, 840 mm (33.07 in)

(5) 970 mm (38.19 in) between the front rack posts and CMA

(6) 880 mm (34.65 in) between the front rack posts and the rear of the slide rails

Installation site requirements

Space and airflow requirements

For convenient maintenance and heat dissipation, make sure the following requirements are met:

· The passage for server transport is a minimum of 1500 mm (59.06 in) wide.

· A minimum clearance of 1200 mm (47.24 in) is reserved from the front of the rack to the front of another rack or row of racks.

· A minimum clearance of 800 mm (31.50 in) is reserved from the back of the rack to the rear of another rack or row of racks.

· A minimum clearance of 1000 mm (39.37 in) is reserved from the rack to any wall.

· The air intake and outlet vents of the server are not blocked.

· The front and rear rack doors are adequately ventilated to allow ambient room air to enter the cabinet and allow the warm air to escape from the cabinet.

· The air conditioner in the equipment room provides sufficient air flow for heat dissipation of devices in the room.

Figure 2 Airflow through the server

(1) to (3) Directions of the airflow into the chassis and power supplies
(4) Direction of the airflow out of the power supplies	(5) and (6) Directions of the airflow out of the chassis

Temperature, humidity, and altitude requirements

To ensure correct operation of the server, make sure the room temperature, humidity, and altitude meet the requirements as described in "Appendix C Environment requirements."

Cleanliness requirements

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

Table 4 Mechanically active substance concentration limit in the equipment room

Substance	Particle diameter	Concentration limit
Dust particles	≥ 5 µm	≤ 3 × 10⁴ particles/m³ (No visible dust on desk in three days)
Dust (suspension)	≤ 75 µm	≤ 0.2 mg/m³
Dust (sedimentation)	75 µm to 150 µm	≤ 1.5 mg/(m²h)
Sand	≥ 150 µm	≤ 30 mg/m³

The equipment room must also meet limits on salts, acids, and sulfides to eliminate corrosion and premature aging of components, as shown in Table 5.

Table 5 Harmful gas limits in an equipment room

Gas	Maximum concentration (mg/m³)
SO₂	0.2
H₂S	0.006
NO₂	0.04
NH₃	0.05
Cl₂	0.01

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

To store the server, an HDD, or an SSD for 3 months or longer without power supply, power on the server, HDD, or SSD at least once every 3 months as a best practice. Make sure the power-on operation time is not less 2 hours. For more information about powering on or off the server, see "Powering on and powering off the server."

As a best practice to avoid data loss, make sure the power-off storage time is less than 180 days for an HDD and less than 90 days for an SSD, M.2 SSD, or SD card.

Installing or removing the server

Installing the server

As a best practice, install hardware options to the server (if needed) before installing the server in the rack. For more information about how to install hardware options, see "Installing and removing hardware options."

Installing rails

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

Rack-mounting the server

WARNING!

To avoid bodily injury, slide the server into the rack with caution for the sliding rails might squeeze your fingers.

1. Lift the server, and then slide the server into the rack along the rails.

Figure 3 Rack-mounting the server

2. Secure the server:

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

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

c. Use a T25 Torx screwdriver to 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

(Optional) 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 the CMA.

Connecting a mouse, keyboard, and monitor

About this task

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

The server provides one VGA connector on the rear panel for connecting a monitor.

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 the 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 network port on the server. For the position of the HDM network port, see rear panel view in "Appendix A Server specifications."

2. Determine the 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 of the same type with the old cable 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, make sure the Ethernet cable is correctly connected.

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

Connecting a USB device

About this task

Perform this task before you install the operating system of the server or transmit data through a USB device.

The server provides a maximum of three USB connectors.

· One USB 3.0 connector on the front panel.

· Two USB 3.0 connectors on the rear panel.

Guidelines

Before connecting a USB device, make sure the USB device can operate correctly and then copy data to the USB device.

USB devices are hot swappable.

As a best practice for compatibility, purchase officially certified USB devices.

Procedure

1. Connect the USB device to the USB connector.

2. Verify that the server can identify the USB device.

If the server fails to identify the USB device, download and install the driver of the USB device. If the server still fails to identify the USB device after the driver is installed, replace the USB device.

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.

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. (Optional.) 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.

b. Open the cable clamp, place the power cord through the opening in the cable clamp, and then close the cable clamp.

c. Slide the cable clamp forward until it is flush against the edge of the power cord plug.

Securing cables

Securing cables to the CMA

For information about how to secure cables to the CMA, see the installation guide shipped with the CMA.

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 8 Securing cables to a slide rail

Removing the server from a rack

1. Power off 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, as shown in Figure 9.

a. Open the latches of the chassis ears.

b. Use a T25 Torx screwdriver to loosen the captive screws.

c. Slide the server out of the rack.

Figure 9 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

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 LEDs and buttons in "Appendix B Component specifications."

Powering on the server from the HDM Web interface

For more information, see HDM online help.

Powering on the server from the remote console interface

For more 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, see HDM online help.

To configure automatic power-on from the BIOS, see the BIOS user guide for the server.

Powering off the server

Prerequisites

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

· Backup 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, and then power off the server. For more information, see HDM online help.

2. Disconnect all power cords from the server.

Powering off the server from the remote console interface

1. Log in to a remote console, and then power off the server. For more information, see HDM online help.

2. 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 10 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 LEDs and buttons in "Appendix B Component specifications."

Configuring basic BIOS settings

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

NOTE:

The BIOS menu screenshots used in this document are for illustration only and might differ from your products.

Setting the server boot order

You can change the server boot order from the BIOS. For information about the default boot order and the order change method, see the BIOS user guide for the server.

Setting the BIOS passwords

The BIOS passwords include BIOS administrator and user passwords. For more information about setting BIOS 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 information about the operating system compatibility, visit the OS compatibility query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

Installing hardware drivers

IMPORTANT:

In case an update failure causes hardware unavailability, 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 HDM:

· HDM.

· BIOS.

· CPLD.

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

Installing and removing hardware options

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

For more information about hardware installation and replacement videos, visit H3C official website at http://www.h3c.com/cn/home/qr/default.htm?id=547.

General guidelines

To remove the access panel for the first time, first remove the screws on both sides at the server rear.

General prerequisites

Before you install or replace any hardware options except the security bezel, make sure the following conditions are met:

· Wear the 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 and watches.

· Examine the slot and connector for damages before you install a hardware option. Make sure the pins are not damaged (bent for example) and do not contain any foreign objects.

Installing and removing blanks

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

· Drives.

· Power supplies.

· Riser cards.

· PCIe modules.

· Drive cages.

· FLOM network adapter.

Table 6 lists the steps to install and remove blanks for different modules.

Table 6 Installing or removing blanks

Task	Step
Removing a drive blank	Press the latches on the drive blank inward with one hand, and pull the drive blank out of the slot.
Installing a drive blank	Insert the drive blank into the slot.
Removing a power supply blank	Hold and pull the power supply blank out of the slot.
Installing a power supply blank	Push the power supply blank into the power supply slot with the TOP mark facing up.
Removing a riser card blank	Remove the screws from the riser card blank, and then then lift the blank to remove it from the connector.
Installing a riser card blank for riser card 1 or 2	Insert the riser card blank along the riser card bracket, and then fasten the screws.
Installing a riser card blank for riser card 3	1. Install the riser card bracket. Align the guide pins on the bracket with the guide holes in the chassis, and then use screws to secure the bracket into place. 2. Insert the blank into the chassis with the standouts on the blank aligned with the notches on the brackets.
Removing a PCIe module blank	Remove the screw on the PCIe module blank in the target PCIe slot, and then pull the blank out of the slot.
Installing a PCIe module blank	Insert the PCIe module blank into the slot and use a screw to secure the blank into place.
Removing a drive cage blank	Lift the drive cage blank out of the chassis.
Installing a drive cage blank	Align the standouts on the drive cage blank with the notches on the chassis edges and insert the blank into chassis.
Removing the FLOM network adapter blank	Push the FLOM network adapter blank out from the inside of the chassis.
Installing the FLOM network adapter blank	Insert the FLOM network adapter blank into the slot.

Replacing the security bezel

Removing the security bezel

1. Insert the key provided with the bezel into the lock on the bezel. Hold down and turn the key 90 degree clockwise to unlock the security bezel.

CAUTION:

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

2. Press the latch on the bezel, open the security bezel, and then release the latch.

3. Pull the other edge of the security bezel out of the groove in the chassis ear to remove the security bezel.

Installing the security bezel

1. Press the right edge of the security bezel into the groove in the right chassis ear on the server.

2. Press the latch at the other end, close the security bezel, and then release the latch to secure the security bezel into place.

3. Insert the key provided with the bezel into the lock on the bezel. Hold down and turn the key 90 degree counterclockwise to lock the security bezel. Then, pull out the key and keep it safe.

CAUTION:

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

Replacing a SAS/SATA drive

Guidelines

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

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

· To build a RAID (or logical drive) successfully, 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. Whether a drive with extra capacity can be used to build other RAIDs depends on the storage controller model. The following storage controllers do not allow the use of a drive for multiple RAIDs:

¡ HBA-H460-B1.

¡ HBA-H460-M1.

¡ HBA-LSI-9300-8i-A1-X.

¡ HBA-LSI-9311-8i.

¡ RAID-LSI-9361-8i(1G)-A1-X.

¡ RAID-LSI-9361-8i(2G)-1-X.

¡ RAID-P460-B4.

¡ RAID-P460-M4.

· If the installed drive contains RAID information, you must clear the information before configuring RAIDs. For more information, see the storage controller user guide for the server.

To ensure sufficient operation space, pull the server 30 cm (11.81 in) out of the rack before replacing drives at the server rear.

Prerequisites

Back up data in the RAID array.

Removing a SAS/SATA drive

1. Remove the security bezel, if any. For more information, see "Removing the security bezel."

2. 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."

3. 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.

4. Install the drive blank in the slot if you do not install a new drive at the moment.

Installing a SAS/SATA drive

1. Install the drive:

a. Press the button on the drive panel to release the locking lever.

b. Insert the drive into the slot and push it gently until you cannot push it further.

c. Close the locking lever until it snaps into place.

2. Install the removed security bezel. For more information, see "Installing the security bezel."

Verifying the replacement

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

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

¡ Log in to HDM. For more information, see 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."

Replacing an NVMe drive

Guidelines

NVMe drives support hot insertion.

Only one drive can be hot inserted at a time. To hot insert multiple NVMe drives, wait a minimum of 60 seconds for the previously installed NVMe drive to be identified before hot inserting another NVMe drive.

Support for hot removal and managed hot removal of NVMe drives varies by operating system. For information about the available operating systems, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/. For more information, see "Appendix C Hot removal and managed hot removal of NVMe drives." To remove an NVMe drive in an operating system that does not support hot removal and managed hot removal of NVMe drives, first power off the server.

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

· If the installed drive contains RAID information, you must clear the information before configuring RAIDs. For more information, see the storage controller user guide for the server.

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

Removing an NVMe drive

1. Identify whether the operating system of the server supports hot removal and managed hot removal of NVMe drives.

¡ If the operating system supports hot removal or managed hot removal, identify the NVMe drive to be removed, and then remove the drive or perform managed hot removal for the drive.

For data security purposes, perform hot removal as a best practice. For more information about managed hot removal, see "Appendix C Hot removal and managed hot removal of NVMe drives."

¡ If the operating system does not support hot removal or managed hot removal, power off the server. For more information, see "Powering off the server."

2. Remove the security bezel, if any. For more information, see "Removing the security bezel."

3. Remove the drive:

a. Press the button on the drive panel to release the locking lever.

b. Hold the locking lever and pull the drive out of the slot.

4. Install the drive blank in the slot if you do not install a new drive at the moment.

Installing an NVMe drive

1. Remove the drive blank, if any.

2. Install the drive:

a. Press the button on the drive panel to release the locking lever.

b. Insert the drive into the slot and push it gently until you cannot push it further.

c. Close the locking lever until it snaps into place.

3. Install the removed security bezel. For more information, see "Installing the security bezel."

Verifying the replacement

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

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

· Access the CLI or GUI of the server to verify the drive properties (including capacity) and state.

Replacing a power supply

Guidelines

CAUTION:

To avoid hardware damage, do not use third-party power supplies.

· The power supplies are hot swappable.

· The server supports 1+1 power supply redundancy.

· Make sure the installed power supplies are the same model. HDM will perform power supply consistency check and generate an alarm if the power supply models are different.

Removing a power supply

If two power supplies are installed and sufficient space is available for replacement, you can replace a power supply without powering off or removing the server from the rack.

To remove 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.

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. 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. Remove the power supply blank from the target power supply slot, if any.

2. Install the power supply:

a. Align the power supply with the slot, making sure its fan is on the left.

b. Push the power supply into the slot until it snaps into place.

3. Install the removed CMA.

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."

Verifying the installation

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

· Observe the power supply LED to verify that the power supply is operating correctly. For more information about the power supply LED, see rear panel in "Appendix A Server specifications."

· Log in to HDM to verify that the power supply is operating correctly. For more information, see HDM online help.

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

· 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.

· If a processor is faulty or absent, the corresponding PCIe slots are unavailable. For more information about processor and PCIe slot mapping relationship, see riser cards in "Appendix B Component specifications."

· For more information about PCIe module and riser card compatibility, see riser cards in "Appendix B Component specifications."

· Some riser cards cannot be installed on the server at the same time. As shown in Table 7, × indicates that two riser cards are mutually exclusive, and √ indicates that two riser cards are compatible with each other.

Table 7 Riser card compatibility

PCIe riser card model	FHHL-2X16+X8-G3	RC-3FHFL-2U-4UG3	FHHL-2X8-G3	FHHL-X16-G3	RC-3FHFL-2U-4UG3-1	RC-2LP-1U-4UG3
FHHL-2X16+X8-G3	×	×	√	√	×	×
RC-3FHFL-2U-4UG3	×	×	×	×	√	√
FHHL-2X8-G3	√	×	×	×	×	×
FHHL-X16-G3	√	×	×	×	×	×
RC-3FHFL-2U-4UG3-1	×	√	×	×	×	√
RC-2LP-1U-4UG3	×	√	×	×	√	×

· For more information about riser card installation location, see Table 8.

Table 8 Riser card installation location

PCIe riser connector	Riser card name	Available riser cards	Remarks
1	Riser card 1	FHHL-2X16+X8-G3	One PCIe signal cable is required.
1	Riser card 1	RC-3FHFL-2U-4UG3	N/A
2	Riser card 2	FHHL-2X8-G3	N/A
		FHHL-X16-G3	N/A
		RC-3FHFL-2U-4UG3-1	One PCIe signal cable is required.
3	Riser card 3	RC-2LP-1U-4UG3	· Two PCIe signal cables are required and a power cord is required. · The M.2 expander module and riser card 3 have the same installation location. You can install only one of them.

· Connect a PCIe signal cable for the following PCIe modules:

¡ PCIe module in PCIe slot 3 on the FHHL-2X16+X8-G3 riser card.

Connect the SlimSAS connector on the riser card to SlimSAS connector 4 on the system board, as shown in Figure 32.

¡ PCIe module in PCIe slot 6 on the RC-3FHFL-2U-4UG3-1 riser card.

Connect the SlimSAS connector on the riser card to SlimSAS connector 2 on the system board, as shown in Figure 33.

¡ PCIe module in PCIe slot 7 or PCIe slot 8 on the RC-2LP-1U-4UG3 riser card.

- PCIe slot 7: Connect SlimSAS connector 1 on the riser card to SlimSAS connector 4 on the system board, as shown in Figure 34.

- PCIe slot 8: Connect SlimSAS connector 2 on the riser card to SlimSAS connector 1 on the system board, as shown in Figure 34.

Replacing a PCIe module and a riser card on PCIe riser connector 1 or 2

Removing a PCIe module and a riser card on PCIe riser connector 1 or 2

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.

4. Disconnect all the cables connected to the target riser card, if any.

5. Disconnect all cables from the PCIe module, if any.

6. Lift the riser card out the chassis to remove the riser card.

7. Remove the screw that secures the PCIe module, and then pull the PCIe module out of the slot.

Installing a PCIe module and a riser card on PCIe riser connector 1 or 2

1. Install the PCIe module to the riser card. Insert the PCIe module into the slot along the guide rails and use the removed screw to secure it into place.

2. Install the riser card to the server:

a. Lift the riser card blank out of the chassis.

b. Install the riser card on the PCIe riser connector.

3. Connect a PCIe signal cable, if required.

4. Connect cables to the PCIe module, if any.

5. Install the access panel.

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."

Replacing a PCIe module and a riser card on PCIe riser connector 3

Removing a PCIe module and a riser card on PCIe riser connector 3

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.

4. Disconnect cables from the PCIe module, if any.

5. Disconnect all the cables connected to the riser card.

6. Loosen the captive screw that secures the riser card on the system board.

7. Lift the riser card out of the chassis to remove the riser card.

8. Remove the screw that secures the PCIe module, and then pull the PCIe module out of the slot.

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

1. To install a riser card on PCIe riser connecter 3 for the first time, perform the following tasks:

a. Lift the drive cage blank out of the chassis to remove the blank.

b. Install the riser card bracket. Align the guide pins on the bracket with the guide holes in the chassis, and then use screws to secure the bracket into place.

c. Remove the screw on the system board.

2. Insert the PCIe module into the PCIe slot along the guide rails, and then use the screw to secure the module into place.

3. Insert the riser card in the PCIe riser connector.

4. Fasten the captive screw to secure the riser card into place.

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

6. Install the riser card blank, if you install a riser card on PCIe riser connector 3 for the first time.

7. Install 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."

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. If the storage controller contains a built-in flash card, you can order only a supercapacitor.

A supercapacitor has a lifespan of 3 to 5 years. If the lifespan of a supercapacitor expires, a supercapacitor exception might occur. The alarming mode for supercapacitor exceptions varies by storage controller model.

· 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 view log entries from HDM for supercapacitor exception analysis.

To avoid the invalidity of the power fail safeguard module, replace the supercapacitor before its lifespan expires.

IMPORTANT:

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

Guidelines

To install two storage controllers, make sure they are of the same vendor. For information about the available storage controllers and their vendors, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

Make sure the power fail safeguard module or supercapacitor is compatible with the storage controller. Use Table 9 to identify the compatibility and supercapacitor installation location.

Table 9 Storage controller compatibility with power fail safeguard module or supercapacitor

Storage controller	Power fail safeguard module/supercapacitor	Supercapacitor location
RAID-P460-M4	BAT-PMC-G3 supercapacitor	On the air baffle
RAID-P460-B4	BAT-PMC-G3 supercapacitor
RAID-LSI-9361-8i(1G)-A1-X	Flash-LSI-G2 power fail safeguard module
RAID-LSI-9361-8i(2G)-1-X	Flash-LSI-G2 power fail safeguard module
RAID-LSI-9460-8i(4G)	BAT-LSI-G3 supercapacitor
HBA-H460-M1	Not supported	N/A
HBA-LSI-9300-8i-A1-X
HBA-H460-B1
HBA-LSI-9311-8i
HBA-LSI-9440-8i

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 BIOS.

The required storage controller configuration varies by drive configuration. For more information, see drive configurations and numbering in Appendix B Component specifications."

You can install one or two standard storage controllers.

· To install one standard storage controller, install the storage controller in PCIe slot 1.

· To install two standard storage controllers, install the storage controllers in PCIe slots 1 and 2, 1 and 4, or 4 and 5.

Preparing for replacement

To replace the storage controller with a controller of the same model, identify the following information before the replacement:

· Storage controller location and cabling.

· Storage controller model, operating mode, and firmware version.

· BIOS boot mode.

· First boot option in Legacy mode.

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

Replacing a standard storage controller and a power fail safeguard module

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.

4. Disconnect the cables from the standard storage controller.

5. Remove the standard storage controller. For more information, see "Replacing riser cards and PCIe modules."

6. (Optional.) Remove the supercapacitor of the power fail safeguard module:

a. Disconnect the supercapacitor extension cable from the supercapacitor.

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

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

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

Installing a standard storage controller and a power fail safeguard module

1. (Optional.) Install the flash card of the power fail safeguard module to the standard storage controller:

IMPORTANT:

Skip this step if no power fail safeguard module is required or the storage controller has a built-in flash card.

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

b. Slowly insert the flash card connector into the socket and use screws to secure the flash card on the storage controller.

2. (Optional.) Install the supercapacitor of the power fail safeguard module:

a. Install the supercapacitor holder to the air baffle. Place the supercapacitor holder on the air baffle and then push the holder toward the server front until it snaps into place.

b. Install the supercapacitor. Tilt the supercapacitor and insert the supercapacitor into the holder.

c. Connect the supercapacitor extension cable to the supercapacitor.

3. Install the standard storage controller. For more information, see "Replacing riser cards and PCIe modules."

4. Connect the cables to the standard storage controller.

5. Install the access panel.

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."

Replacing a mezzanine storage controller and a power fail safeguard module

Removing a mezzanine 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.

4. Disconnect all cables from the mezzanine storage controller.

5. For the ease of replacement, remove the riser cards installed on PCIe riser connectors 1 and 2, if any.

6. Loosen the captive screws on the mezzanine storage controller, and then lift the storage controller to remove it.

7. (Optional.) Remove the supercapacitor of the power fail safeguard module. For more information, see "Replacing a standard storage controller and a power fail safeguard module."

8. Remove the flash card on the storage controller, if any. For more information, see "Replacing a standard storage controller and a power fail safeguard module."

Installing a mezzanine storage controller and a power fail safeguard module

1. (Optional.) Install the flash card of the power fail safeguard module to the mezzanine storage controller. For more information, see "Replacing a standard storage controller and a power fail safeguard module."

2. (Optional.) Install the supercapacitor of the power fail safeguard module. For more information, see "Replacing a standard storage controller and a power fail safeguard module."

3. Align the pin holes in the mezzanine storage controller with the guide pins on the system board. Insert the guide pins into the pin holes to place the storage controller on the system board, and then fasten the captive screws to secure the controller.

4. Connect the cables to the mezzanine storage controller.

5. Install the access panel.

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."

Replacing a network adapter

Guidelines

The server supports both standard PCIe network adapters and FLOM network adapters.

You can install an FLOM network adapter only in the FLOM network adapter connector on the system board. For more information about the connector location, see system board components in "Appendix A Server specifications."

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

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.

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.

5. Remove the standard PCIe network adapter. For more information, see "Replacing riser cards and PCIe modules."

Installing a standard PCIe network adapter

1. Install the standard PCIe network adapter. For more information, see "Replacing riser cards and PCIe modules."

2. Install the access panel.

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

4. Connect cables for the standard PCIe network adapter.

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 FLOM network adapter

Removing an FLOM network adapter

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

2. Disconnect cables from the network adapter.

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

4. Remove the access panel.

5. Loosen the captive screw and then pull the network adapter out of the slot.

Installing an FLOM network adapter

1. Remove the FLOM network adapter blank, if any.

2. Install the FLOM network adapter. Insert the FLOM network adapter into the slot, and then fasten the captive screw to secure the network adapter into place.

3. Install the access panel.

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

5. Connect cables for the network adapter.

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 and the M.2 expander module

WARNING!

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

Guidelines

You can install the M.2 expander module only in the M.2 expander module connector on the system board. For more information about the connector location, see system board components in "Appendix A Server specifications."

If you are installing two SATA M.2 SSDs, install two SATA M.2 SSDs of the same model to ensure high availability.

Use SATA M.2 SSDs only for installing the operating system.

The M.2 expander module and riser card 3 have the same installation location. You can install only one of them.

The M.2 expander module has a socket for a SATA M.2 SSD on both sides.

Removing a SATA M.2 SSD and the M.2 transfer 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.

4. For the ease of replacement, remove the component installed in PCIe riser connector 2:

¡ To remove a rear 2LFF drive cage, see "Replacing a drive cage."

¡ To remove a PCIe riser card, see "Replacing riser cards and PCIe modules."

5. Remove the M.2 expander module. Remove the two screws that secure the M.2 expander module and then gently lift the module out of the M.2 expander module connector.

6. Remove the SATA M.2 SSD. Remove the screw that secures the SSD on the expander module, and then pull the SSD out of the connector.

Installing a SATA M.2 SSD and the M.2 transfer module

1. Install the SATA M.2 SSD to the M.2 transfer module. Insert the connector of the SSD into the socket, and push down the other end of the SSD. Then, fasten the screw to secure the SSD into place.

2. Insert the M.2 expander module to the M.2 expander module connector, and then fasten the screws to secure the module into place.

3. Install the removed component in PCIe riser connector 2:

¡ To install a rear 2LFF drive cage, see "Replacing a drive cage."

¡ To install a PCIe riser card, see "Replacing riser cards and PCIe modules."

4. Install 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 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.

4. Pinch the NVMe VROC module with a finger passing through the ring part, and then pull the module out of the chassis.

Installing the NVMe VROC module

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

2. Install 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."

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 thermal damage to the server, do not operate the server for long periods with the access panel open or uninstalled.

Guidelines

The fan modules are hot swappable. If sufficient space is available for replacement, you can replace a fan module without powering off the server or removing the server from the rack. The following procedure is provided based on the assumption that no sufficient space is available for replacement.

Make sure all the four fan modules are present.

Install four high-performance fan modules if a GPU is present, and install four standard-performance fan modules if no GPU is present.

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.

4. Pinch the notches on both sides of the fan module and pull the fan module out of the slot.

Installing a fan module

1. Pinch the notches on both sides of the fan module and insert the fan module into the slot.

2. Install 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."

Replacing a processor

WARNING!

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

Guidelines

· The server supports only one or two processors.

· 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 system board components in "Appendix A Server specifications."

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

· The required processor heatsink type varies by processor power.

¡ For a processor with 125 W or higher, a high-performance heatsink is required.

¡ For a processor with power less than 125 W, a standard-performance heatsink is required.

· To ensure heat dissipation, install air baffle panels to the chassis air baffle if standard-performance heatsinks are used, and remove the air baffle panels if high-performance heatsinks are used.

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.

4. Remove the chassis air baffle.

5. Remove the processor heatsink:

a. Loosen the four captive screws in the sequence from screw 4 to screw 1 as shown by the marks on the heatsink.

IMPORTANT:

An incorrect sequence might cause the captive screws to fall off.

b. Lift the heatsink slowly to remove it.

6. Remove the processor retaining bracket from the heatsink:

a. Insert a flat-head tool (such as a flat-head screwdriver) into the notch marked with TIM BREAKER to pry open the retaining bracket.

b. Press the four clips in the four corners of the bracket to release the retaining bracket.

You must press one clip and its cater-cornered clip outward, and press the other two clips inward.

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

7. Remove the processor. Separate the processor from the retaining bracket with one hand pushing down and the other hand tilting the processor.

8. Remove the air baffle panels if you are replacing a standard-performance heatsink with a high-performance heatsink. To remove the air baffle panels, place the chassis air baffle upside down, lift the clips that secure the panels, and slide the panels outward to remove them.

Installing a processor

Installing a processor option

1. 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.

2. If the processor does not have thermal grease or thermal grease is not applied evenly, smear thermal grease onto the processor:

a. Clean the processor and heatsink with isopropanol wipes. Allow the isopropanol to evaporate before continuing.

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 retaining bracket onto the heatsink:

CAUTION:

When you remove the protective cover over the heatsink, be careful not to touch the thermal grease on the heatsink.

a. Lift the cover straight up until it is removed from the heatsink.

b. Install the retaining bracket onto the heatsink. 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.

4. Remove the processor socket cover.

CAUTION:

· Take adequate ESD preventive measures when you remove the processor socket cover.

· Be careful not to touch the pins on the processor socket, which are very fragile. Damage to pins will incur system board replacement.

· Keep the pins on the processor socket clean. Make sure the socket is free from dust and debris.

Hold the cover by the notches on its two edges and lift it straight up and away from the socket. Put the cover away for future use.

5. Install the heatsink onto the server:

a. Place the heatsink on the processor socket. Make sure the alignment triangle on the retaining bracket and the pin holes in the heatsink are aligned with the cut-off corner and guide pins of the processor socket, respectively.

b. Fasten the four captive screws on the heatsink from screw 1 to screw 4 as shown by the marks 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 1.4 Nm (12 in-lbs).

6. (Optional.) Install the air baffle panels if you are replacing a high-performance heatsink with a standard-performance heatsink. To install the air baffle panels, place the chassis air baffle upside down, place the panels in the slots, and then push the panels into the slot until they snap into place.

7. Install the chassis air baffle.

8. Install 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 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 DCPMMs and DRAM DIMMs (both LRDIMM and RDIMM supported). Compared with DRAM DIMMs, DCPMMs provide larger capacity and can protect data from getting lost in case of unexpected system failures. RDIMMs can perform parity checking on addresses. Compared with RDIMMs, LRDIMMs provide larger capacity.

Both DCPMMs and DRAM DIMMs are referred to as DIMMs in this document, unless otherwise stated.

Guidelines

WARNING!

The DIMMs are not hot swappable.

You can install a maximum of 12 DIMMs for each processor, six DIMMs per memory controller. For more information, see DIMM slots in "Appendix A Server specifications."

For a DIMM to operate at 2933 MHz, make sure the following conditions are met:

· Use Cascade Lake processors that support 2933 MHz data rate.

· Use DIMMs with a maximum of 2933 MHz data rate.

· Install a maximum of one DIMM per channel.

The supported DIMMs vary by processor model, as shown in Table 10.

Table 10 Supported DIMMs of a processor

Processor	Supported DIMMs
Skylake	Only DRAM DIMMs.
Cascade Lake	· Only DRAM DIMMs. · Mixture of DCPMM and DRAM DIMMs.
Jintide-C series	Only DRAM DIMMs.

For DIMMs compatible with the server and detailed DIMM information, visit the query tool at http://www.h3c.com/cn/Service/Document_Software/Document_Center/Server/.

Guidelines for installing only DRAM DIMMs

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

· Make sure the corresponding processor is present before powering on the server.

· Make sure all DRAM DIMMs installed on the server have the same product code.

· Make sure the number of ranks per channel does not exceed eight.

· For the memory mode setting to take effect, make sure the following DIMM installation requirements are met when you install DRAM DIMMs for a processor:

Memory mode	DIMM requirements
Independent	· If only one processor is present, see Figure 11. · If two processors are present, see Figure 12.
Mirror	· A minimum of two DIMMs for a processor. · DIMM installation scheme: ¡ If only processor 1 is present, see Figure 11. ¡ If two processors are present, see Figure 12. This mode does not support DIMM population schemes that are not recommended.
Memory Rank Sparing	· A minimum of 2 ranks per channel. · DIMM installation scheme: ¡ If only one processor is present, see Figure 11. ¡ If two processors are present, see Figure 12.

NOTE:

If the DIMM configuration does not meet the requirements for the configured memory mode, the system uses the default memory mode (Independent mode). For more information about memory modes, see the BIOS user guide for the server.

Figure 11 DIMM population schemes (one processor present)

Figure 12 DIMM population schemes (two processors present)

Guidelines for mixture installation of DCPMMs and DRAM DIMMs

When you install DRAM DIMMs and DCPMMs on the server, follow these restrictions and guidelines:

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

· Make sure all DRAM DIMMs have the same product code and all DCPMMs have the same product code.

· As a best practice to increase memory bandwidth, install DRAM and DCPMM DIMMs in different channels.

· A channel supports a maximum of one DCPMM. Make sure the DCPMMs on the server have the same capacity.

· As a best practice, install DCPMMs symmetrically across the two memory processing units for a processor.

· To install both DRAM DIMM and DCPMM in a channel, install the DRAM DIMM in the white slot and the DCPMM in the black slot. To install only one DIMM in a channel, install the DIMM in the white slot if the DIMM is DCPMM.

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.

4. Remove the chassis air baffle.

5. Remove the DIMM. Open the DIMM slot latches and pull the DIMM out of the slot.

Installing a DIMM

1. Install the DIMM:

a. Identify the location of the DIMM slot.

b. Open the DIMM slot latches.

c. 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.

To avoid damage to the DIMM, do not use force to press the DIMM into the socket when you encounter resistance. Instead, re-align the notch with the connector key, and then reinsert the DIMM again.

2. Install the removed chassis air baffle.

3. Install 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 drive cage

Removing a drive cage

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.

4. Remove drives that might hinder the replacement.

5. Remove cables from the drive backplane.

6. Remove the drive cage. Remove the screws that secure the drive cage, and then pull the drive cage out of the chassis.

Installing a drive cage

1. Install the drive cage:

a. Aligning the clip at the cage side with the edge of the bracket in the chassis, place the drive cage in the chassis.

b. Use screws to secure the drive cage into place.

2. Connect cables to the drive backplane.

3. Install the removed drives.

4. Install 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.

Guidelines

Mark drive positions to make sure that the removed drives can be re-installed in the original slots.

Replacing a 2LFF, 4LFF, 2SFF, or 4SFF drive backplane

The replacement procedure is the same for the 2LFF, 4LFF, 2SFF, and 4SFF drive backplanes. This section replaces the 2LFF drive backplane.

Removing a 2LFF, 4LFF, 2SFF, or 4SFF 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 access panel.

4. Remove the drives attached to the backplane.

5. Disconnect cables from the backplane.

6. Remove the drive backplane. Loosen the captive screw that secure the backplane, and then pull the backplane out of the chassis.

Installing a 2LFF, 4LFF, 2SFF, or 4SFF drive backplane

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

2. Connect cables to the drive backplane.

3. Installed the removed drives.

4. Install 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 12LFF drive backplane

Removing a 12LFF 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 access panel.

4. Disconnect the supercapacitor extension cable for the standard storage controller.

5. Remove all riser cards.

6. Remove the 2LFF drive cage, if any.

7. Remove the chassis air baffle.

8. Remove fan modules and fan cages.

9. Disconnect all cables connected to the system board.

10. Remove the system board.

11. Remove the drive backplane:

a. Remove the drives attached to the backplane.

b. Disconnect cables from the backplane.

c. Loosen the captive screws that secure the backplane, and then pull the backplane out of the chassis.

Installing a 12LFF drive backplane

1. Install the 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 drives.

4. Install the system board.

5. Connect cables to the system board.

6. Install the removed fan cages and fan modules.

7. Install the chassis air baffle.

8. Install the removed riser cards.

9. Connect the supercapacitor extension cable for the storage controller.

10. Install the removed 2LFF drive cages.

11. Install the access panel.

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

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

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

Replacing a 24LFF drive backplane

Removing a 24LFF 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 access panel.

4. Remove all drives at the server front.

5. Remove all fan modules.

6. Remove fan cages.

7. Disconnect cables from the backplane.

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

Installing a 24LFF drive backplane

1. Install the 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 cages.

4. Install the removed fan modules.

5. Install the removed drives.

6. Install the access panel.

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

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

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

Replacing the system board

WARNING!

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

Guidelines

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

Mark cables to make sure they can be reconnected correctly.

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 access panel.

4. Disconnect the supercapacitor extension cable for the standard storage controller.

5. Remove all riser cards.

6. Remove the 2LFF drive cages, if any.

7. Remove the chassis air baffle.

8. Remove fan modules and fan cages.

9. Disconnect all cables connected to the system board.

10. Remove all components installed on the system board.

11. 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.

Installing the system board

1. Hold the system board by its 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.

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

3. Install the removed components.

4. Reconnect cables to the system board.

5. Install the removed fan cages and fan modules.

6. Install the chassis air baffle.

7. Install the removed riser cards.

8. Connect the supercapacitor extension cable for the standard storage controller.

9. Install the remove 2LFF drive cages.

10. Install the access panel.

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."

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 13 TCM/TPM installation and setup flowchart

Installing a TCM or TPM

Procedure

The installation procedure is the same for a TPM and a TCM. This section installs a TPM.

To install a 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.

4. Remove the riser cards that might hinder TPM installation.

5. Install the TPM:

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.

6. Install the removed riser cards.

7. Install 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."

Enabling the TCM or TPM in the BIOS

For information about enabling the TCM or TPM, see the BIOS user guide for the server.

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 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 (Panasonic BR2032) installed on the system board, which supplies power to the real-time clock and has a lifespan of 5 to 10 years. If the server no longer automatically displays the correct date and time, you might need to replace the battery. As a best practice, use a new Panasonic BR2032 battery to replace the old one.

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.

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.

4. Gently tilt the system battery to remove it from the battery holder.

NOTE:

For environment protection purposes, dispose of the used-up system battery at a designated site.

Installing the system battery

1. Orient the system battery with the plus-sign (+) side facing up, and place the system battery into the system battery holder.

2. Press the system battery to seat it in the holder.

3. Install 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 GPU

WARNING!

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

Guidelines

A riser card is required when you install a GPU. For information about GPU and riser card compatibility, see riser cards in "Appendix B Component specifications."

GPUs require high-performance fan modules.

Use Table 11 to determine the installation locations of GPUs. For information about PCIe slots, see riser cards in "Appendix B Component specifications."

Table 11 GPU installation locations

Number of GPUs	Recommended PCIe slots
1	Slot 1
2	Slots 1 and 4
3	Slots 1, 2, and 4
4	Slots 1, 2, 4, and 5
5	Slots 1, 2, 3, 4, and 5
6	Slots 1, 2, 3, 4, 5, and 6
7	Slots 1, 2, 3, 4, 5, 6, and 7
8	Slots 1, 2, 3, 4, 5, 6, 7, and 8

Removing a GPU

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.

4. Disconnect cables from the riser card that holds the GPU, if any.

5. Lift the riser card to remove the riser card from the chassis.

6. Remove the GPU. Remove the screw that secures the GPU and pull the GPU out of the PCIe slot.

Installing a GPU

1. Insert the GPU into the PCIe slot along the guide rails and fasten the screw to secure the GPU into place.

2. Install the riser card onto the PCIe riser connector along the guide rails.

3. Reconnect the disconnected cables.

4. Install 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.

Guidelines

You can install an NVMe SSD expander module only in PCIe slot 2 of the riser card on PCIe riser connector 1.

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.

4. Disconnect cables from the riser card that holds the NVMe SSD expander module.

5. Disconnect the expander module from the rear drive backplane by removing the cables from the rear drive backplane.

6. Lift the riser card to remove the riser card from the chassis.

7. Remove the NVMe SSD expander module. Remove the screw that secures the expander module and pull the expander module out of the PCIe slot.

Installing an NVMe SSD expander module

1. Insert the NVMe SSD expander module into the PCIe slot along the guide rails and fasten the screw to secure the NVMe SSD expander module into place.

2. Install the riser card onto the PCIe riser connector along the guide rails.

3. Reconnect the disconnected cables.

4. Reconnect the disconnected cables to the rear drive backplane.

5. Install the access panel.

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."

Connecting internal cables

Properly route the internal cables and make sure they are not squeezed.

Connecting drive cables

The server requires two-layer drive cabling:

· Upper layer drive cabling—Includes cabling for the front 24LFF drive backplane, rear 2SFF or 4SFF drive backplane, and rear 2LFF or 4LFF drive backplane.

· Lower layer drive cabling—Includes cabling for the rear 12LFF drive backplane.

Upper layer drive cabling

Connecting signal cables

Figure 14 Connecting signal cables (1)

(1) Front 24LFF drive backplane signal cable	(2) Rear 2LFF drive backplane signal cable
(3) Rear 4SFF drive backplane signal cable

Figure 15 Connecting signal cables (2)

Rear 4LFF drive backplane signal cable

Figure 16 Connecting signal cables (3)

Rear 2SFF drive backplane signal cable

Connecting power cords

Figure 17 Connecting power cords (1)

(1) Front 24LFF drive backplane power cord	(2) Rear 4SFF drive backplane power cord
(3) Rear 2LFF drive backplane power cord

Figure 18 Connecting power cords (2)

Rear 4LFF drive backplane power cord

Figure 19 Connecting power cords (3)

Rear 2SFF drive backplane power cord

Connecting data cables

Front NVMe cabling

When connecting front NVMe data cables, make sure you connect the corresponding peer ports with the correct NVMe data cable. Use Table 12 to determine the ports and connectors to be connected.

Figure 20 Connecting front NVMe data cables

(1) NVMe data cable 1	(2) NVMe data cable 2
(3) NVMe data cable 3

Table 12 NVMe data cable and the corresponding connectors on the drive backplane and the system board

Mark on the NVMe data cable to the drive backplane	Connector on the drive backplane	Mark on the NVMe data cable to the system board	SlimSAS connector on the system board
NVMe PORT 1	NVMe PORT 1	NVMe PORT 2	SlimSAS connector 2
NVMe PORT 2	NVMe PORT 2	NVMe PORT 1	SlimSAS connector 1
NVMe PORT 3	NVMe PORT 3	NVMe PORT 3	SlimSAS connector 3

Rear NVMe cabling

When connecting rear NVMe data cables, make sure you connect the corresponding peer ports with the correct NVMe data cable. Use Table 13 to determine the ports and connectors to be connected.

Figure 21 Connecting rear NVMe data cables

(1) NVMe data cable 2 (to the drive backplane)	(2) NVMe data cable 1 (to the drive backplane)
(3) NVMe data cable 1 (to the NVMe SSD expander module)	(4) NVMe data cable 2 (to the NVMe SSD expander module)
(5) NVMe data cable 3 (to the NVMe SSD expander module)	(6) NVMe data cable 4 (to the NVMe SSD expander module)

Table 13 NVMe data cable and the corresponding peer ports on the drive backplanes and NVMe SSD expander module

Mark on the NVMe data cable end to the drive backplane	Port on the drive backplane	Mark on the NVMe data cable end to the NVMe SSD expander module	SlimSAS connector on the NVMe SSD expander module
NVMe 1	NVMe 1	NVMe 1	NVMe 1
NVMe 1	NVMe 1	NVMe 2	NVMe 2
NVMe 2	NVMe 2	NVMe 3	NVMe 3
NVMe 2	NVMe 2	NVMe 4	NVMe 4

Mezzanine storage controller cabling

You must connect the mezzanine storage controller data cable to SAS port 1 on the 24LFF drive backplane.

Figure 22 Connecting the data cable for the mezzanine storage controller

Standard storage controller cabling

The cabling method for storage controllers varies by storage controller configuration.

· If only one standard storage controller is installed, connect the storage controller to SAS port 1 on the 24LFF drive backplane.

· If one standard storage controller and one mezzanine storage controller are installed, apply the following cabling method:

¡ Connect the mezzanine storage controller to SAS port 1 on the 24LFF drive backplane.

¡ Connect the standard storage controller to SAS port 8 on the 24LFF drive backplane.

· If two standard storage controllers are installed, apply the following cabling method:

¡ Connect the standard storage controller in the slot with a smaller number to SAS port 1 on the 24LFF drive backplane.

¡ Connect the standard storage controller in the slot with a greater number to SAS port 8 on the 24LFF drive backplane.

Figure 23 Connecting the data cable for the standard storage controller

Rear 2LFF drive backplane cabling

You can connect the rear 2LFF drive backplane only to SAS port 2 on the front 24LFF drive backplane.

Figure 24 Connecting the rear 2LFF drive backplane to the front 24LFF drive backplane

Rear 4LFF drive backplane cabling

You can connect the rear 4LFF drive backplane only to SAS port 2 on the front 24LFF drive backplane.

Figure 25 Connecting the rear 4LFF drive backplane to the front 24LFF drive backplane

Rear 4SFF drive backplane cabling

You can connect the rear 4SFF drive backplane only to SAS port 3 on the front 24LFF drive backplane.

Figure 26 Connecting the rear 4SFF drive backplane to the front 24LFF drive backplane

Rear 2SFF drive backplane cabling

You can connect the rear 2SFF drive backplane only to SAS port 3 on the front 24LFF drive backplane.

Figure 27 Connecting the rear 2SFF drive backplane to the front 24LFF drive backplane

Lower layer drive cabling

Connect cables at lower layer in the server, as shown in Figure 28.

Figure 28 Connecting cables at lower layer

(1) Rear 12LFF drive backplane signal cable	(2) Rear 12LFF drive backplane data cable 1
(3) Rear 12LFF drive backplane data cable 2	(4) Rear 12LFF drive backplane power cord

Connect the rear 12LFF drive backplane power cord, as shown in Figure 29. The drive backplane power cord must be connected to rear drive backplane power connector 1 on the system board. For more information about the connector location, see system board components in "Appendix A Server specifications."

Figure 29 Connecting the rear 12LFF drive backplane power cord

Connecting the flash card and the supercapacitor of the power fail safeguard module

The flash card of the power fail safeguard module can be installed on a mezzanine storage controller or on a standard storage controller. Choose the connection procedure depending on the location of the flash card.

Connecting the flash card on the mezzanine storage controller

Connect the flash card on the mezzanine storage controller to the supercapacitor, as shown in Figure 30.

Figure 30 Connecting the flash card on the mezzanine storage controller

Connecting the flash card on a standard storage controller

Connect the flash card on a standard storage controller to the supercapacitor, as shown in Figure 31.

Figure 31 Connecting the flash card on a standard storage controller

Connecting PCIe signal cables

The cabling method of PCIe signal cables varies by riser card model.

Connect the PCIe signal cable for the FHHL-2X16+X8-G3 riser card, as shown in Figure 32.

Figure 32 Connect the PCIe signal cable for the FHHL-2X16+X8-G3 riser card

Connect the PCIe signal cable for the RC-3FHFL-2U-4UG3-1 riser card, as shown in Figure 33.

Figure 33 Connect the PCIe signal cable for the RC-3FHFL-2U-4UG3-1 riser card

Connect PCIe signal cables for the RC-2LP-1U-4UG3 riser card, as shown in Figure 34.

Figure 34 Connect PCIe signal cables for the RC-2LP-1U-4UG3 riser card

(1) PCIe signal cable 1

(2) PCIe signal cable 2

Connecting the front I/O component cable assembly

Figure 35 Connecting the front I/O component cable assembly

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.

· 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

Use a temperature humidity meter to monitor the operating environment of the server for maintenance.

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 front panel and rear panel in "Appendix A Server specifications."

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.

Technical support

If you encounter any complicated problems during daily maintenance or troubleshooting, contact H3C Support.

Before contacting H3C Support, collect the following server information to facilitate troubleshooting:

· Log information, including event logs, HDM logs, and SDS logs in HDM.

· Sensor information in HDM.

· 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.

Signing in to HDM

For information about signing in to HDM for server management, see HDM user guide for the server.

H3C UniServer R4300 G3 Server User Guide-6W101

Preventing electrostatic discharge

Grounding methods to prevent electrostatic discharge

Battery safety

Diagonal pliers

Paper knife

Installing or removing the server

About this task

Procedure

About this task

Procedure

About this task

Guidelines

Procedure

Guidelines

Procedure

Securing cables to the CMA

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

Removing a PCIe module and a riser card on PCIe riser connector 1 or 2

Installing a PCIe module and a riser card on PCIe riser connector 1 or 2

Removing a PCIe module and a riser card on PCIe riser connector 3

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

Removing a standard storage controller and a power fail safeguard module

Removing a mezzanine storage controller and a power fail safeguard module

Installing a mezzanine storage controller and a power fail safeguard module

Removing a standard PCIe network adapter

Installing a standard PCIe network adapter

Removing an FLOM network adapter

Installing an FLOM network adapter

Guidelines for installing only DRAM DIMMs

Guidelines for mixture installation of DCPMMs and DRAM DIMMs