Place controller offline (duplex)

If you have a duplex configuration, you must place the affected controller offline so you can safely remove the failed HIC. You must back up the configuration and collect support data first. Then, you can take the affected controller offline.

Before you begin

About this task

Perform this task only if your storage array has two controllers (duplex configuration).


  1. From the Details area of the Recovery Guru, determine which of the controller canisters has the failed HIC.
  2. Back up the storage array's configuration database.
    If a problem occurs when you remove a controller, you can use the saved file to restore your configuration.
    1. Open the Enterprise Management Window (EMW) for SANtricity Storage Manager on your management station.
    2. Select the storage array.
    3. Select Tools > Execute Script.
    4. Type the following command in the text box.
      save storageArray dbmDatabase sourceLocation=onboard contentType=all file="filename";
      In this command, filename is the file path and file name to which you want to save the database. Enclose the file name in double quotation marks (" "). For example:
       file="C:\Program Files\CLI\logs\" 

      This command does not automatically append a file extension to the saved file. You must specify a file extension when entering the file name.

    5. Select Tools > Verify and Execute.
  3. 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.

  4. If the controller is not already offline, take it offline now using either SANtricity System Manager or the Enterprise Management Window's (EMW) script editor:
      1. Select Hardware.
      2. If the graphic shows the drives, select Show back of shelf to show the controllers.
      3. Select the controller that you want to place offline.
      4. From the context menu, select Place offline, and confirm that you want to perform the operation.
      1. Open the Enterprise Management Window (EMW) in SANtricity Storage Manager on your local host.
      2. Select the storage array.
      3. Select Tools > Execute Script.
      4. Type one of the following commands in the text box.
        For controller A: set controller [a] availability=offline
        For controller B: set controller [b] availability=offline
      5. Select Tools > Verify and Execute.
  5. Wait for SANtricity System Manager to update the controller's status to offline.
    Attention: Do not begin any other operations until after the status has been updated.

After you finish

Go to Replace host interface card.