Table 29. Hard disk drive problems (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 5 “Parts listing, Lenovo System x3750 M4 Type 8753” on page 203 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by
(Trained service technician only),
that step must be performed only by
a Trained service technician.
Symptom
Action
7. Reseat the backplane power cable and repeat step 11 on page 184 through
8. Reseat the backplane signal cable and repeat step 11 on page 184 through
9. Suspect the backplane signal cable or the backplane:
a. Replace the affected backplane signal cable.
b. Replace the affected backplane.
10. Run the DSA tests for the SAS/SATA adapter and hard disk drives (see “Running
the DSA Preboot diagnostic programs” on page 177).
• If the adapter passes the test but the drives are not recognized, replace the
backplane signal cable and run the tests again.
• Replace the backplane.
• If the adapter fails the test, disconnect the backplane signal cable from the
adapter and run the tests again.
• If the adapter fails the test, replace the adapter.
11. See “Problem determination tips” on page 198 for more information.
12. (Trained service technician only) replace the system board.
Multiple hard disk drives fail or
are offline.
1. If the server was recently installed, moved, or serviced, make sure that the
drives are seated correctly, the backplane cables are securely connected to the
backplane and the system board, and the RAID adapter is configured correctly.
2. Check the IMM2 event log for any hard disk drive events and resolve the
problem.
3. Install the drives on a different backplane to see if they are recognized. If they
are, replace the backplane; otherwise, replace the drive.
4. Replace the RAID adapter.
5. Replace the system board.
Hard disk drive(s) installed in
the server, but not detected by
the SAS controller.
Complete the following steps:
1. Verify that the drives are supported for this server. See the ServerProven web
site at http://www.ibm.com/systems/info/x86servers/serverproven/compat/us/
for a list of supported hard drives.
2. Check the IMM event log for any RAID hard disk drive events and resolve the
problem.
3. Make sure that the drives are seated correctly, the SAS signal cables are
securely connected, the backplane cables are securely connected to the
backplanes, and the RAID adapter is configured correctly.
4. If the problem remains:
a. Reseat the backplane(s), SAS signal cable(s), and backplane power cable(s).
b. Restart the server.
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