Lenovo 7D31, Maintenance Manual

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A drive has failed with yellow LED lit
Complete the following procedure to solve the problem.
1. Check the XCC event log for drive events and resolve the problem.
A newly installed drive is not recognized.
Complete the following procedure to solve the problem.
1. Set up RAID configuration.
2. Check the XCC event log, and resolve related errors if found any.
3. If the LED is lit, remove the drive from the drive bay, wait 45 seconds, and reinsert the drive. Make sure
that the drive assembly connects to the drive backplane.
4. Observe the associated green drive activity LED and the yellow status LED:
• If the green activity LED is flashing and the yellow status LED is not lit, the drive is recognized by the
controller and is working correctly. Run the LXPM Disk Drive Test to determine whether the drive is
detected (see https://sysmgt.lenovofiles.com/help/topic/LXPM/diagnostics.html).
• If the green activity LED is flashing and the yellow status LED is flashing slowly, the drive is
recognized by the controller and is rebuilding.
• If neither LED is lit or flashing, check the drive backplane.
• If the green activity LED is flashing and the yellow 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 a drive backplane is present to
install the drive into.
6. Make sure that the drive backplane is correctly seated. When it is correctly seated, the drive assemblies
would be correctly connected to the backplane without bowing or causing movement of the backplane.
7. Reseat the backplane power cable and repeat step 1 to step 3.
8. Reseat the backplane signal cable and repeat step 1 to step 3.
9. Suspect the backplane signal cable or the backplane:
a. Replace the affected backplane signal cable.
b. Replace the affected backplane.
10. (Trained service technician only) Replace the system board.
Drive(s) installed in the server are not detected by SAS controller
Complete the following procedure to solve the problem.
1. Verify if the drives are supported for this server. See the ServerProven web site at https://
static.lenovo.com/us/en/serverproven/index.shtml for a list of supported drives.
2. Check the XCC event log, resolve drive related errors is found any.
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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ThinkSystem SR850 V2 Maintenance Manual