Lenovo ThinkServer User Manual page 183

Symptom
A newly installed hot-swap hard disk drive is not
recognized.
Multiple hard disk drives fail.
Not all drives are recognized by the hard disk drive
diagnostic test.
The server stops responding during the hard disk drive
diagnostic test.
A hard disk drive was not detected while the operating
system was being started.
Action
5. Replace the non-hot-swap hard disk drive.
1. Make sure that the drive is installed into the correct
drive bay.
2. Restart the server.
3. Remove the drive from the bay, wait 45 seconds,
and reinsert the drive into the bay, making sure that
the drive connects to the hot-swap hard disk drive
backplane.
4. Run any diagnostic programs to test the hard disk
drive.
5. Make sure that the hot-swap hard disk drive
backplane is correctly seated. When it is correctly
seated, the drive assemblies correctly connect to the
backplane without bowing or causing movement of
the backplane.
6. Make sure that the cable connection is correct. See
"Connecting cables" on page 38.
7. Reconnect the backplane power cable and repeat
step 1 through step 4.
8. Reconnect the backplane signal cable and repeat
step 1 through step 4.
9. If you suspect a problem with the backplane signal
cable or the backplane:
a. Replace the affected backplane signal cable.
b. Replace the affected backplane.
1. Run any diagnostic programs to test the hard disk
drives.
2. Make sure that the cable connection is correct. See
"Connecting cables" on page 38.
3. Reconnect the power cable.
4. Reconnect the signal cable.
5. Replace the affected signal cable.
6. For hot-swap hard disk drives, if you suspect a
problem with the backplane, replace the affected
backplane.
Remove the drive(s) that are not recognized by the
diagnostic test. Then, run the hard disk drive diagnostic
test again. If the remaining drives are recognized, replace
the drive(s) that you removed.
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.
Reinstall all hard disk drives and reconnect cables. Then,
run the hard disk drive diagnostic test.
.
Chapter 7 Troubleshooting and diagnostics
171