Replacing an expansion enclosure midplane

To replace a faulty expansion enclosure midplane assembly with a new one received from CRU / FRU stock, use this procedure.

Attention: To prevent data loss, you must shut down the system before you begin the procedure to replace an expansion enclosure midplane assembly.
The control enclosure midplane assembly must be replaced only by a trained service provider.

To replace the expansion enclosure midplane assembly, complete the following steps.

  1. Read the safety information in Preparing to remove and replace parts.
  2. Read Procedure: Understanding volume dependencies to determine whether to continue this procedure.
  3. Disconnect each power supply unit in the expansion enclosure from its power outlet, so that the expansion enclosure is powered off.
  4. Confirm that all the LEDs on the rear of the enclosure are off.
  5. Complete the Replacing the enclosure midplane of a powered off enclosure procedure on the expansion enclosure.
  6. Reconnect the power to the expansion enclosure.
    The expansion canisters restart and the system logs an error in the event log alerting you to the unrecognized enclosure.
    Important: Step 7 writes the enclosure identity into the replacement midplane. The replacement midplane cannot be used as a replacement part for a different enclosure after step 7 is completed.
  7. Go to Monitoring > Events in the management GUI.
    Find the error that relates to the enclosure ID of the replaced enclosure and run the fix procedure for the error.
Parent topic: Replacing parts