Adaptec 133U2 - AAA RAID Controller User Manual page 131

Managing Arrays and Spares
recover the array data if an array went off-line due to disk
failure.
You were trying to replace a failed disk in a Critical, RAID 0/1,
or RAID 5 array, but you mistakenly pulled the wrong disk out
of the array enclosure.
If this happens, reinsert the drive you mistakenly removed and
issue the Rescan command and then issue the Reactivate Array
command. This will return the array to Critical status. Then
replace the correct disk and reconstruct the array.
A cable to a good disk in a RAID 5 array accidentally became
disconnected, and the array already had one failed drive; or a
cable to a good drive in a RAID 0/1 array accidentally became
disconnected, and the other disk of the mirrored pair had
already failed.
If this happens, reconnect the cable, issue the Rescan command
and use the Reactivate Array command to return the drive to
Critical status. Then replace the failed disk and reconstruct the
array.
You are trying to replace a failed disk in a Critical RAID 1
array, but you mistakenly pulled the wrong disk out of the
array enclosure.
If this happens, reinsert the drive you mistakenly removed,
replace the failed disk, shut down the system and reboot.
Reconstruct the array.
A cable to a good disk in a RAID 1 array accidentally becomes
disconnected and the array already had one failed drive.
If this happens, shut down the system, reconnect the cable,
replace the failed drive, and reboot the system. Reconstruct the
array.
A member of a RAID 0 array was accidentally removed or a
cable to a good disk in a RAID 0 array accidentally becomes
disconnected.
If this happens, reinsert the drive you mistakenly removed or
reconnect the cable, issue the Rescan command, and use the
Reactivate command to return the array to OK status.
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