A drive is Defunct on controller
[number], channel [number], SCSI ID [number].
Explanation: One of the
following occured:
-
Error in communication between
the drive and the adapter.
-
Adapter failed.
Action:
Check in the following order:
-
Power to external enclosures,
connections
-
Cables for proper seating
-
Damage or bent or pushed pins,
termination (for non-back plane systems), back planes, drives and adapter.
-
If no connection problems can
be identified, then the replacement order for parts is termination (for
non-back plane systems), cables, backplanes, drives and adapter. Before
replacing a drive or adapter ensure that they are updated with the latest
firmware and still fail.