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E-Series storage systems

Offline the impaired controller - EF50 and EF80

Contributors netapp-lisa
PDFs

Place the impaired controller offline in your EF50 or EF80 storage system to prevent data loss and ensure system stability when replacing the controller.

Before

  • You must have met the requirements for this procedure.

  • You must have completed the preparation for this procedure.

About this task

Whenever you place a controller offline, you need to wait at least one minute before bringing the controller back online. This waiting period allows the storage system to update the status of the controller and ensure that all cached data is written to the drives.

Steps

  1. If the impaired controller is not already offline, place it offline using SANtricity System Manager:

    1. Select Hardware > Controllers and components to show the controllers.

    2. Select the controller that you want to place offline to display its content menu.

    3. Select Place offline, and then confirm that you want to perform the operation.

      Note If you are accessing SANtricity System Manager using the controller you are attempting to place offline, a SANtricity System Manager Unavailable message is displayed. Select Connect to an alternate network connection to automatically access SANtricity System Manager using the other controller.

  2. Wait for SANtricity System Manager to update the controller's status to offline.

    Caution Do not begin any other operations until after the status has been updated.

  3. Confirm it is safe to remove the faulty component, using the Recovery Guru:

    1. Select Recheck.

    2. Confirm that the OK to remove field in the Details area displays Yes.

      Caution If the OK to remove field does not display Yes, do not proceed with the removal of the faulty component. Instead, troubleshoot the issue using the Recovery Guru.
What's next?

After placing the impaired controller offline, replace the impaired controller.