Lenovo ThinkSystem SR850, Maintenance Manual

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• 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 (go to step drive problems).
• If the green activity LED is flashing and the yellow status LED is lit, replace the drive. If the activity of
the LEDs remains the same, go to step drive problems. If the activity of the LEDs changes, return to
step 1.
4. Make sure that the 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.
5. Reseat the backplane power cable and repeat steps 1 through 3.
6. Reseat the backplane signal cable and repeat steps 1 through 3.
7. Suspect the backplane signal cable or the backplane:
• Replace the affected backplane signal cable.
• Replace the affected backplane.
8. Run the diagnostics tests for the SATA/SAS adapter and drives. When you start a server and press F1,
the Lenovo XClarity Provisioning Manager interface is displayed by default. You can perform drive
diagnostics from this interface. From the Diagnostic page, click
Run Diagnostic ➙ HDD test .
Based on those tests:
• 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.
Multiple drives fail
Complete the following steps until the problem is solved:
• View the Lenovo XClarity Controller event log for events related to power supplies or vibration issues and
resolve those events.
• Make sure that the device drivers and firmware for the hard disk drive and server are at the latest level
Multiple drives are offline
Complete the following steps until the problem is solved:
• View the Lenovo XClarity Controller event log for events related to power supplies or vibration issues and
resolve those events.
• View the storage subsystem log for events related to the storage subsystem and resolve those events.
A replacement drive does not rebuild
Complete the following steps until the problem is solved:
1. Make sure that the drive is recognized by the adapter (the green drive activity LED is flashing).
2. Review the SATA/SAS RAID adapter documentation to determine the correct configuration parameters
and settings.
Green drive activity LED does not represent actual state of associated drive
Complete the following steps until the problem is solved:
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ThinkSystem SR850 Maintenance Manual