IBM x3105 - System - 4347, Service Manual

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Hard disk drive problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, System x3105 Type 4347,” on page 53 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
Not all drives are recognized by
the hard disk drive diagnostic
test (the Fixed Disk test).
Remove the drive that is indicated by the diagnostic tests; then, run the hard disk
drive diagnostic test again. If the remaining drives are recognized, replace the drive
that you removed with a new one.
The server stops responding
during the hard disk drive
diagnostic test.
Remove the hard disk drive that was being tested when the server stopped
responding, and run the diagnostic test again. If the hard disk drive diagnostic test
runs successfully, replace the drive that you removed with a new one.
A hard disk drive was not
detected while the operating
system was being started.
Reseat all hard disk drives and cables; then, run the hard disk drive diagnostic
tests again.
Intermittent problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, System x3105 Type 4347,” on page 53 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Symptom Action
A problem occurs only
occasionally and is difficult to
diagnose.
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 fan grille. If there is no
airflow, the fan is not working. This can cause the server to overheat and shut
down.
v Make sure the SCSI bus and devices are configured correctly and that the last
external device in each SCSI chain is terminated correctly.
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IBM System x3105 Type 4347: Problem Determination and Service Guide