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Tag: Exadata USB

  • Exadata – Replace Failed Internal USB Drive on Exadata Storage Cell

    While working on Exadata Storage cell patching, the patching failed due to failed internal USB drive on a storage cell.
    Oracle uses internal USB drive to backup Exadata Storage cell automatically. We don’t have to backup Storage cell manually.
    In this article I will demonstrate how to replace a failed USB drive an Exadata Storage cell



    • You will receive an automated smtp alert (if configured) similar to below.
    • You can also use the following command to check for USB drive failure
    [root@dm01cel01 ~]# cellcli -e list alerthistory
             1_1     2018-04-10T18:25:42-05:00       warning         “Internal USB status is not present.  Affected USB Slots : 0”
    • You can also use the following ILOM command to check for USB drive failure
    [root@dm01cel01 ~]# ssh dm01cel01-ilom
    Password: *******
    Oracle(R) Integrated Lights Out Manager



    Version 3.2.10.22.a r121524



    Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

    Warning: HTTPS certificate is set to factory default.



    Hostname: dm01cel01-ilom



    -> show /SYS/MB/USB0



    • Open an SR with Oracle if an ASR is already generated
    • Upload sundgia.sh and ILOM Snapshot to the SR for investigation
    • Oracle confirms the that USB drive is faulted
    • Oracle opens a Field task
    • Oracle dispatch team contacts the SR owner with the hardware dispatch details
    • Confirm the Hardware replacement schedule over email and/or SR
    • Schedule the Hardware replacement
    • Oracle FE arrives at the data center with the new USB drive
    • Shutdown the storage cell by following the steps from the MOS below
    Steps to shut down or reboot an Exadata storage cell without affecting ASM (Doc ID 1188080.1)
    • Oracle FE replaces the faulty USB drive and power up the storage cell
    • Confirm that the USB drive is good
    -> show /SYS/MB/USB0
     /SYS/MB/USB0



        Targets:
        Properties:



            type = USB Port
            fault_state = OK
            clear_fault_action = (none)
        Commands:



            cd
            set
            show
    ->



    [root@dm01cel01 ~]# cellcli -e list alerthistory



             1_2     2018-04-11T02:45:49-05:00       clear           “Internal USB status is back to normal.  Affected USB Slots : 0”
    • You will receive an automated smtp alert (if configured) similar to below that the USB status is back to normal



    Conclusion
    In this article we have learned how to replace a faulty USB drive in Exadata Storage cell. Oracle uses USB drive to backup Exadata Storage cell automatically. We don’t have to backup Storage cell manually.