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Restore (Rebuild) arrays

With the Restore task, a redundant-type array whose state has changed to Critical can be restored (rebuilt) in one of the following two ways:

  • by assigning a dedicated spare to the array

  • by creating a global spare or using an existing global spare (An existing global spare automatically starts restoring a redundant-type array after the state of the array changes to Critical.)

When a single disk in a non-redundant array fails, the array state changes to Offline. An array in an Offline state cannot be restored. This means that non-redundant arrays (Volume, RAID0) cannot be restored.

Note
If a Critical redundant array that is being restored loses a second disk (RAID1), or loses a second disk in the same mirror set (RAID10), the Restore task fails. The array must be re-created from backup storage data.

Users can assign a hot spare using RAIDXpert2 GUI utility, AMD SWR HII (RAIDXpert2 in UEFI HII), or the rcadm command.

Assigning a hot spare using RAIDXpert2 GUI utility​

  1. In the Array View section, select the Critical array.

  2. At the Disk List section, double-click on a disk.

  3. At the Disk menu, select Options. Options for Disk Device displays in the Disk List panel.

  4. Perform one of the following actions:

    • To use the disk as a dedicated spare, select Assign as Dedicated Spare.

    • To use the disk as a global spare, select Assign as Global Spare.

  5. Click Confirm.

Adding a hot spare using AMD SWR HII (RAIDXpert2 in UEFI HII)​

To assign global spares, do as follows:

  1. From the main menu of RaidXpert2 Configuration Utility, use the arrow keys to select Physical Disk Management, and then press Enter.

  2. Select Physical Disk Operations using the arrow keys, and then press Enter.

  3. Select Select Physical Disk using the arrow keys, and then press Enter.

  4. Select Assign Global Hot Spare using the arrow keys, and then press Enter.

  5. Review the warning message. If you want to proceed, use the arrow keys to select Yes, or press ESC or No, to exit.

To assign dedicated spares, do as follows:
Note
Dedicated spares can only be assigned to redundant arrays and must be the same size or larger than the other members of the redundant array.

  1. From the main menu of RaidXpert2 Configuration Utility, use the arrow keys to select Array Management, and then press Enter.

  2. Select Manage Array Properties using the arrow keys, and then press Enter.

  3. Select Select Array using the arrow keys, select the desired array (must be a redundant array) from the drop-down menu, and then press Enter.

  4. Select Manage Dedicated Hot Spares using the arrow keys, and then press Enter.

  5. Select the disks to assign as dedicated spares.

    1. Select the disk using the arrow keys to highlight the disk and press the space bar or Enter to select it.

    2. Select Add Hot Spare Physical Disk using the arrow keys, and then press Enter.

    3. At the warning message, press the space bar or Enter to confirm.

    4. Select Yes using the arrow keys, and then press Enter or ESC to exit adding the dedicated spare.

Using the rcadm command to assign a hot spare​

For example, use the following command to add disk 1 as a global hot spare:

rcadm --manage --add-global-spare --disk 1

Note
Use the rcadm -? or rcadm --help command to find more usage about the rcadm command line tool.