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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:

  • Add new hard drives to an existing RAID array.
  • Increase the available space of a RAID array if the capacity of all member hard drives in the RAID array is not fully utilized.
  • 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 hard drives that have not been added to a RAID array.
  • You have logged in to the real-time desktop over the remote virtual console.
  • You have logged in to the Configuration Utility.
  • Hard drive data has been backed up.

Data

None

Procedure

  1. Go to the Virtual Drive Management screen.

    1. Select Main Menu and press Enter.
    2. Select Virtual Drive Management and press Enter.

      The Virtual Drive Management screen is displayed.

      Figure 4-180 Virtual Drive Management

  2. Add a hard drive.

    1. Select the RAID array whose capacity is to be expanded and press Enter.
    2. Select Operation and press Enter.

      The Operation screen is displayed.

      Figure 4-181 Operation

    3. Select Reconfigure Virtual Drives and Enter.
    4. Select Go and press Enter.

      The Reconfigure Virtual Drives screen is displayed.

      Figure 4-182 Reconfigure Virtual Drives

    5. Select a RAID level.

      When adding hard drives to a RAID array for capacity expansion, ensure that the RAID level remains unchanged.

    6. Select Choose the Operation and press Enter.

      The hard drive selection screen is displayed.

    7. Select the hard drive to be added, select Apply Changes, and press Enter.

      A confirmation dialog box is displayed.

      • The types and specifications of the added hard drives must be the same as those of the member disks in the RAID array.
      • The total number of hard drives after capacity expansion must be within the range supported by each RAID type. For range details, see Table 4-3 in RAID 0, 1, 5, 6, 10, 50, and 60.
      • A RAID controller card cannot be used to expand the capacity of two or more RAID arrays at the same time.
    8. Select Confirm and press Enter.
    9. Select Yes and press Enter.

      The system displays a message indicating that the operation is successful.

    10. Select OK and press Enter.

      The screen shown in Figure 4-182 is displayed.

    11. Select Start Operation and press Enter.

      The system displays a message indicating that the operation is successful.

    12. Select OK and press Enter.
      The operations are complete. You can go to the Virtual Drive Management screen and check the capacity expansion result, as shown in Figure 4-183, which shows that the capacity expansion is going on.
      Figure 4-183 Reconfigure Virtual Drives

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Updated: 2019-11-01

Document ID: EDOC1000004186

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