A drive is Defunct on controller
[number], channel [number], SCSI ID [number].
Explanation: One of the following
occurred:
-
Error in communication between
the drive and the adapter.
- The 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.