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14.2.10 Replacing a Failed Disk Drive


14.2.10 Replacing a Failed Disk Drive
This section describes how to replace a failed disk drive among the disk drives that make up a RAID volume.
RAID0
If a disk drive in a RAID0 volume fails, all the data in the volume is lost. Replace the failed disk drive with a new disk drive of the same capacity, re-create the RAID0 volume, and restore the data from a backup.
RAID1/RAID10/RAID1E
Replace the failed disk drive with a new disk drive of the same capacity. Synchronization begins when the new disk drive is incorporated into the RAID volume.
Note - If two disk drives fail at the same time, the RAID volume enters the failed state (Failed).
Replace the failed disk drive, re-create the RAID volume, and then restore the data from backup.
In a hot spare configuration, the hot spare disk drive is automatically re-synchronized to restore data. Replace the faulty disk drive immediately without booting or rebooting Oracle Solaris or starting OpenBoot PROM.
Otherwise, if you replace the faulty disk drive after booting or rebooting Oracle Solaris or starting OpenBoot PROM, switching to the hot spare disk drive does not occur when the disk drive fails again.
In this case, after replacing the faulty disk drive, delete the hot spare setting of the disk drive and create one again to enable recovery.

Use the SAS2IRCU utility to delete/create a hot spare. See the Appendixes "F.6  Deleting a Hot Spare of a Hardware RAID Volume" and "F.5  Creating a Hot Spare of a Hardware RAID Volume."