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Huawei V2 and V3 Server RAID Controller Card User Guide 36

This document describes the appearances and features of the redundant array of independent disks (RAID) controller cards, how to configure properties for the RAID controller cards, and how to install drivers. The RAID controller cards include the LSI SAS2208, LSI SAS2308, LSI SAS3008, LSI SAS3108, LSI SoftRAID, PM8060, and PM8068.
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Adding a Hard Drive to a RAID Array

Adding a Hard Drive to a RAID Array

Scenarios

The capacity of a RAID array can be expanded using either of the following methods:

  • Adding hard drives: Add new hard drives to an existing RAID array.
  • Increasing available space: If the capacity of all member hard drives in a RAID array is not fully utilized, increase the percentage of available space of the RAID array.
  • Only RAID 0, RAID 1, RAID 5, and RAID 6 support capacity expansion through hard drive addition.
  • RAID 10, 50, and 60 do not support capacity expansion through hard drive addition.
  • If a RAID array contains two or more virtual drives, its capacity cannot be expanded through hard drive addition.

Impact on the System

If a hard drive fault occurs during capacity expansion through hard drive addition, the following will occur:

  • If a faulty hard drive exists and the RAID array does not contain redundant data (for example, a faulty hard drive exists during RAID 0 array expansion), the RAID array fails.
  • If a faulty hard drive exists and the RAID array still contains redundant data (for example, a faulty hard drive exists during RAID 1 array expansion), the expansion continues. When the expansion is complete, replace the faulty hard drive and rebuild the RAID array.

Perform capacity expansion through hard drive addition with caution.

Prerequisites

Conditions

The following conditions must be met before you add a hard drive for RAID array capacity expansion on a server:

  • The server has idle hard drives, that is, hard drives in the Unconfigured Good state.
  • You have logged in to the server through a remote virtual console and can manage the server on a real-time basis.
  • You have accessed the Configuration Utility main screen. For details, see Logging In to the Configuration Utility.

Data

You have backed up data on hard drives.

Procedure

  1. On the left of the Configuration Utility main screen, select Virtual Drives.

    The virtual drive selection screen is displayed.

    Figure 4-154 Virtual drive selection screen
  2. Select Properties and click Go.

    The virtual drive property screen is displayed.

    Figure 4-155 Virtual drive properties
  3. Select Adv Opers under Operations, and click Go.

    The capacity expansion screen is displayed.

    Figure 4-156 Adding hard drives to a RAID array
  4. Select Change RAID Level and Add Drive, choose a hard drive from the area below, and click Go.

    The Confirm Page screen is displayed.

    • When expanding RAID array capacity by adding hard drives, ensure that the RAID level remains unchanged.
    • Only one hard drive can be added for a capacity expansion operation.
  5. Click Yes.

    The Advanced Operations screen is displayed.

    Figure 4-157 Advanced Operations screen
  6. Click VD Progress Info to view the progress.
    Figure 4-158 VD Progress Info screen
  7. Click Home to go back to the Configuration Utility main screen.
  8. On the right of the Configuration Utility main screen, view the RAID configuration and check the capacity expansion result.
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Updated: 2019-11-01

Document ID: EDOC1000004186

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