A drive is Defunct on controller
[number], channel [number], SCSI ID [number].
Explanation: One of the following
occurred:
- Adapter may be configured in unattended
mode so that changes to the RAID configuration are accepted automatically.
- A drive has been removed or rearranged
by user.
- Error in communication between
the drive and the adapter.
Note: In a clustering or failover environment, if a logical drive
has been moved to another ServeRAID adapter, these entries might be normal.
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 the they are updated with the latest firmware
and still fail.
Note: If multiple drives are marked defunct within the same time period,
check cables and back planes.