PartitionMagic from PowerQuest Corporation.
9.6.4
Restore (Rebuild) Arrays
With the Restore task, a redundant-type array whose state has changed to Critical can be restored
(rebuilt) in one of two ways:
• By assigning a dedicated spare to the array.
• By creating a global spare or by using an existing global spare. (An existing global
spare automatically starts restoring a redundant-type array after the array’s state
changes to Critical.)
An array in an Offline state cannot be restored. This means that non-redundant arrays (Volume,
RAID0) cannot be restored: when a single disk in a non-redundant array fails, the array state
changes to Offline.
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.
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