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03-H3C HDM2 Storage Management Configuration Examples

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H3C G6 Servers HDM2

Storage Management Configuration Examples

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Hangzhou H3C Technologies Co., Ltd.

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.

The information in this document is subject to change without notice.

Contents

Introduction· 1

Prerequisites· 1

Application scenarios· 1

Example: Performing storage management through HDM·· 1

Network configuration· 1

Analysis· 2

Software versions used· 2

Procedure· 2

Logging into the HDM Web interface· 2

Managing storage controllers· 3

Manage logical drives· 4

Managing physical drives· 6

Managing NVMe drives· 7

Verifying the configuration· 8

Introduction

HDM supports storage management features, allowing users to view summary, detailed, and fault information for storage controllers, logical drives, and physical drives. Users can modify storage controller information, set physical drive states, and create or delete logical drives through designated storage controllers. The following information describes the typical configuration of the storage management feature in H3C HDM management software.

Prerequisites

Procedures and information in the document might be slightly different depending on the software or hardware version of the device.

The configuration examples were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

The following information is provided based on the assumption that you have basic knowledge of storage management.

Application scenarios

This document applies to managing storage controllers, physical drives, and logical drives on servers through HDM, enabling out-of-band management of storage controllers and drives.

Example: Performing storage management through HDM

Network configuration

As shown in Figure 1, the HDM management interface of the H3C UniServer R4900 G6 server (hereafter referred to as R4900 G6) connects to the PC through the switch. Users can log in to the HDM Web interface through the PC to perform storage management.

· The information related to the HDM management software for the R4900 G6 server is as follows:

¡ IP address: 192.168.20.177

¡ Administrator account: admin

¡ Administrator cipher: Password@_

· PC IP address: 10.41.50.29

Figure 1 Network diagram

Analysis

Log into the HDM Web interface of R4900 G6, and use the storage management feature to obtain storage controller information, configure storage controller properties, and manage logical drives and physical drives.

Software versions used

This configuration example was created and verified on HDM2-1.54.

Procedure

Logging into the HDM Web interface

1. Open a browser on the PC and enter IP address 192.168.20.177 in the address bar to access the HDM Web interface. Enter the default administrator username admin and password Password@_ to log into HDM Web.

Figure 2 Logging in to the HDM Web interface

2. Navigate to the System > Storage page.

Figure 3 Storage page

Managing storage controllers

1. Click Logical View.

2. Select the target storage controller and view related information.

Figure 4 Logical view page

3. Click the icon next to RAID controller attributes. On the page that opens, you can perform the following tasks:

¡ Enable or disable data copyback for the RAID controller. With this feature enabled, if a drive fails, the storage controller uses a hot spare drive to replace the failed drive and rebuilds data of the failed drive on the hot spare drive. When the storage controller detects that a new drive replaces the failed drive, it copies data on the hot spare drive back to the new drive and places the hot spare drive in standby status.

¡ Enable or disable SMART error copyback for the RAID controller. When the storage controller detects that a Self Monitoring Analysis and Report Technology (SMART) error occurred to physical drives, it performs the copyback feature.

¡ Modify the RAID controller mode.

- LSI storage controllers support the RAID and JBOD modes.

- PMC storage controllers support the RAID, HBA, and Mixed modes.

Figure 5 RAID controller attributes

4. Click OK.

Manage logical drives

1. Click Logical View.

2. Select a logical drive. You can view the drive name, state, RAID level, capacity, whether the logical drive is a boot drive, stripe size, read policy, write policy, cache policy, default read policy, default write policy, physical drive cache policy, access policy, member drives, capacity of member drives, and properties of member drives.

Figure 6 Logical drive information

3. To create a logical drive, click Create a logical drive, specify drive parameters, such as name, RAID level, stripe size, initialization type, default read policy, default write policy, physical drive cache policy, and access policy.

¡ Name: Name of the logical drive. As a best practice, enter digits and English characters, and avoid using special characters.

- For a PMC storage controller, this field is required and the name length is in the range of 1 to 31.

- For an LSI storage controller, this field is optional and the name length is in the range of 0 to 15.

¡ Level: RAID level.

¡ Stripe size: Stripe size of each physical drive.

¡ Initialization type: Select an initialization type. For an LSI storage controller, options include No, Fast, and Full. For a PMC storage controller, options include Default and RapidParity.

- No—Does not initialize the logical drive.

- Fast—Initializes the first and last 10 MiB of the logical drive for data write. The state of the logical drive then becomes Optimal.

- Full—Initializes all space in the logical drive.

- Default—Does not initialize the logical drive.

- RapidParity— Initializes the first and last 10 MiB of the logical drive for data write. The state of the logical drive then becomes Optimal.

¡ Spans/Parity groups: Number of spans or parity groups for mixed-mode RAID (RAID 00, RAID 10, RAID 50, or RAID 60).

- For an LSI storage controller, the field name is Spans.

- For a PMC storage controller, the field name is Parity groups.

¡ Members per span: Member drives in each span or parity group.

¡ Default read policy: Default read cache policy for logical drives. Options include:

- No read ahead—Disables the read ahead feature.

- Read ahead—Enables read ahead feature. When read ahead is enabled, the storage controller can pre-read sequential data or data anticipated to be requested and store the data in the cache.

¡ Default write policy: Default write cache policy for logical drives. Options include:

- Write through— Enables the controller to send a data transfer completion signal to the host when the drive subsystem has received all data in a transaction.

- Write back— Enables the controller to send a data transfer completion signal to the host when the controller cache receives all data in a transaction. If the storage controller is not installed with a supercapacitor or if the supercapacitor is faulty, the write through policy is used.

- Always write back— Uses the write back policy even if the supercapacitor of the storage controller is absent or faulty. If the server is powered off, the controller cache loses its data because of lack of power.

¡ Physical drive cache policy: Indicates whether cache is enabled for the physical drive. Options include:

- Unchanged—Uses the default drive cache policy.

- Enable—Allows data to be written in the drive cache during the data read or write process to improve the write performance. In case of unexpected power-off, if no protection mechanism is implemented, data in the cache will be lost.

- Disable—Does not write data into the drive cache during the data read or write process. In this state, data will not get lost in case of unexpected power-off.

¡ Access policy: Access policy for the logical drive. Options include:

- Read/Write.

- Read only.

- Blocked.

¡ Capacity: Enter the drive capacity. For an LSI storage controller, the minimum capacity of a logical drive is 100 MiB. For a PMC storage controller, the minimum capacity of a logical drive is 1 GiB. If you do not specify a capacity, the maximum capacity is used.

Figure 7 Creating a logical drive

4. Click Save.

Managing physical drives

1. Click Physical View.

2. Select the target drive. You can view the drive information, including the slot number, manufacturer name, model, firmware version, serial number, state, maximum rate, protocol, media type, and capacity.

Figure 8 Physical drive information

3. To locate the drive, enable the drive UID LED. Figure 9 shows that the LED is being turned on.

Figure 9 System prompt for enabling the drive UID LED

Managing NVMe drives

1. Click Physical View.

2. Select the target NVMe drive. You can view the drive information, including the product name, manufacturer, state, firmware version, serial number, model, interface type, capacity, physical slot, PCIe slot, remaining life, maximum rate, media type, and predicted remaining life in days.

Figure 10 NVMe drive information