IBM xSeries 100, Problem Determination And Service Manual

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General 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, xSeries 100 Type 8486,” on page 49 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 cover lock is broken, an LED
is not working, or a similar
problem has occurred.
If the part is a CRU, replace it. If the part is a FRU, the part must be replaced by a
trained service technician.
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, xSeries 100 Type 8486,” on page 49 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.
A hard disk drive passes the
diagnostic Fixed Disk Test but
the problem remains.
Run the diagnostic small computer system interface (SCSI) Fixed Disk Test (see
“Running the diagnostic programs” on page 37).
Note: This test is not available on servers that have redundant array of
independent disks (RAID) arrays or servers that have IDE or serial advanced
technology attachment (SATA) hard disk drives.
Chapter 2. Diagnostics
27