IBM System x3750 M4 Type 8722 Installation And Service Manual page 192

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 5, "Parts listing, System x3750 M4 Types 8722 and 8733," on page 195 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
A newly installed hard disk
drive is not recognized.
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System x3750 M4 Types 8722 and 8733: Installation and Service Guide
Action
1. Set up the RAID configuration.
2. Check the IMM event log for hard disk drive events and resolve the problem.
3. If the LED is lit, remove the drive from the drive bay, wait 45 seconds, and
reinsert the drive, making sure that the drive assembly connects to the hard
disk drive backplane.
4. Observe the associated green hard disk drive activity LED and the amber
status LED:
v If the green activity LED is flashing and the amber status LED is not lit, the
drive is recognized by the controller and is working correctly. Run the DSA
hard disk drive test to determine whether the drive is detected (see
"Running the DSA Preboot diagnostic programs" on page 171).
v If the green activity LED is flashing and the amber status LED is flashing
slowly, the drive is recognized by the controller and is rebuilding.
v If neither LED is lit or flashing, check the hard disk drive backplane (go to
step 5).
v
v If the green activity LED is flashing and the amber status LED is lit, replace
the drive. If the activity of the LEDs remain the same, go to step 5. If the
activity of the LEDs changes, return to step 1.
5. Make sure that there is a hard disk drive backplane present to install the
drive into.
6. Make sure that the 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.
7. Reseat the backplane power cable and repeat steps 1 through 3.
8. Reseat the backplane signal cable and repeat steps 1 through 3.
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 171).
v If the adapter passes the test but the drives are not recognized, replace the
backplane signal cable and run the tests again.
v Replace the backplane.
v If the adapter fails the test, disconnect the backplane signal cable from the
adapter and run the tests again.
v If the adapter fails the test, replace the adapter.
11. See "Problem determination tips" on page 189 for more information.
12. (Trained service technician only) replace the system board.