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Expansion enclosure problems
General problems
Hark disk drive problems
Symptom
Not all drives are recognized by
the hard disk drive diagnostic
test (Fixed Disk test).
The server stops responding
during the hard disk drive
diagnostic test.
Intermittent problems
Symptom
A problem occurs only occasionally and is difficult to
diagnose.
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xSeries 206 Type 8482: Installation Guide
Symptom
The SCSI expansion enclosure used to work
but does not work now.
Symptom
A cover lock is broken, an LED is
not working, or a similar problem
has occurred.
Suggested action
1. Remove the first drive not recognized and try the hard disk drive diagnostic test
again.
2. If the remaining drives are recognized, replace the drive that you removed with
a new one.
If the problem remains, call for service.
1. Remove the hard disk drive that was being tested when the server stopped
responding and try the diagnostic test again.
2. If the hard disk drive diagnostic test runs successfully, replace the drive that
you removed with a new one.
Suggested action
Make sure that:
v The cables for all external SCSI options
are connected correctly.
v The last device in each SCSI chain, or the
end of the SCSI cable, is terminated
correctly.
v Any external SCSI devices are turned on.
You must turn on external SCSI devices
before turning on the server.
For more information, see your SCSI
expansion enclosure documentation.
Suggested action
Call for service.
Suggested action
Make sure that:
v All cables and cords are connected securely to the
rear of the server and attached devices.
v When the server is turned on, air is flowing from the
rear of the server at the fan grille. If there is no airflow,
the fan is not working. This can cause the server to
overheat and shut down.
v The SCSI bus and devices are configured correctly
and the last external device in each SCSI chain is
terminated correctly.
If the problem remains, call for service.
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