Complete adding a second controller

You complete the process of adding a second controller by confirming that it is working correctly. Then, you can reinstall the duplex NVSRAM file, distribute volumes between the controllers, and collect support data.


  1. As the controller boots, check the controller LEDs and the seven-segment display.
    When communication with the other controller is reestablished:
    • The seven-segment display shows the repeating sequence OS, OL, blank to indicate that the controller is offline.
    • The amber Attention LED remains on.
    • The Host Link LEDs might be on, blinking, or off, depending on the host interface.

    Attention LED (amber) Seven-segment display Host Link LEDs

  2. Check the codes on the controller's seven-segment display as it comes online. If the display shows one of the following repeating sequences, immediately remove the controller.
    • OE, L0, blank (mismatched controllers)
    • OE, L6, blank (unsupported HIC)
    Attention: Possible loss of data access – If the controller you just installed shows one these codes, and the other controller is reset for any reason, the second controller could also lock down.
  3. Update the array's settings from simplex to duplex.
    1. Open the EMW in SANtricity Storage Manager on your local host.
    2. Select the storage array.
    3. Select Tools then Execute Script.
    4. Type in the following command:

      set storageArray redundancyMode=duplex;

    5. Select Tools then Verify and Execute.
  4. From SANtricity System Manager, confirm that the controller's status is Optimal.
    If the status is not Optimal or if any of the Attention LEDs are on, confirm that all cables are correctly seated, and check that the controller canister is installed correctly. If necessary, remove and reinstall the controller canister.
    Note: If you cannot resolve the problem, contact technical support.
  5. Reinstall the duplex version of the NVSRAM file using either SANtricity System Manager or the Enterprise Management Window's (EMW) script editor.
    This step ensures that both controllers have an identical version of this file.
    Attention: Risk of data loss or risk of damage to the storage array — Do not make changes to the storage array while the upgrade is occurring. Maintain power to the storage array.
      1. Under SANtricity OS Software upgrade, click Begin Upgrade.
      2. Click Browse, and select the SANtricity OS software file.
      3. Select the checkbox labeled Transfer Controller NVSRAM file with upgrade.
        Note: You must install SANtricity OS software when you install a new NVSRAM file using SANtricity System Manager. If you already have the latest version of SANtricity OS software, you must reinstall that version.
      4. Click Browse, and select the duplex version of the Controller NVSRAM file (the file with “D” near the end of its name).
      5. Click Start, and confirm that you want to perform the operation.
      1. Open the EMW in SANtricity Storage Manager on your local host.
      2. Select the storage array.
      3. Select Tools > Execute Script.
      4. Type the following command in the text box.
        download storageArray NVSRAM file="filename" healthCheckMelOverride=FALSE;
        In this command, filename is the file path and the file name for duplex version of the Controller NVSRAM file (the file with “D” in its name). Enclose the file path and the file name in double quotation marks (" "). For example:
      5. Select Tools > Verify and Execute.
  6. After the controllers reboot, optionally distribute volumes between controller A and the new controller B.
    1. Select Storage > Volumes.
    2. From the All Volumes tab, select More > Change Ownership.
    3. Type the following command in the text box: change ownership
      The Change Ownership button is enabled.
    4. For each volume you want to redistribute, select Controller B from the Preferred Owner list.

    5. Click Change Ownership.

      When the process is complete, the Change Volume Ownership dialog shows the new values for Preferred Owner and Current Owner.

  7. Collect support data for your storage array using SANtricity System Manager.
    1. Select Support > Support Center > Diagnostics.
    2. Select Collect Support Data.
    3. Click Collect.

    The file is saved in the Downloads folder for your browser with the name support-data.7z.


The process of adding a second controller is complete. You can resume normal operations.