RAID 10 multiple-disk failure

The procedure for handing a RAID 10 multiple-disk failure depends on whether the failed disk is on the same mirrored pair or on a different mirrored pair.

If each failed disk belongs to a different mirrored pair, then the array is in the Degraded state because the data on each failed disk is still available from its mirrored pair. The recovery procedure for this case is the same as that for a single-disk failure case where you initiate the rebuild operation after you replace the failed disks.

When both members of a mirrored pair fail, the disk array status changes to Failed. You must delete the disk array, replace the failed disks, and then recreate the disk array. You must then recreate the file systems on the disk array and copy data to the restored disk array from your backup media.