It could be that it was a RAID 5 that had a failure and is now reporting 
as a RAID 1.  (2 mirror's with no parity) Some controllers may do this 
automatically.

Just a thought, and I'm probably wrong.

Steve

Randy Melder wrote:
> This is what gets me:
> "If up to N-1 disks are removed (or crashes), all data are still
> intact. If there are spare disks available, and if the system (eg.
> SCSI drivers or IDE chipset etc.) survived the crash, reconstruction
> of the mirror will immediately begin on one of the spare disks, after
> detection of the drive fault."
> ( http://www.tldp.org/HOWTO/Software-RAID-HOWTO-1.html#ss1.4 )
>
> Does that mean the spare disk is empty until a fault or removal of one
> of the drives?
>
> I guess I'm just looking for something that says "Spare disks in the
> array maintain the same mirror at all times even after failure of N-1
> disks."
>
> Am I splitting hairs?
>
> ; ) .randy
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