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Install and maintain

Shut down the controller to replace the boot media - AFX 1K

Contributors netapp-driley netapp-jsnyder
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Shut down the impaired controller in your AFX 1K storage system to prevent data loss and ensure system stability when replacing the boot media.

To shut down the impaired controller, you must determine the status of the controller and, if necessary, perform a storage failover takeover of the controller so that the healthy controller continues to serve data from the impaired controller storage.

About this task

  • If you have a cluster with more than four nodes, it must be in quorum. To view cluster information about your nodes, use the cluster show command. For more information about the cluster show command, see View node-level details in an ONTAP cluster.

  • If the cluster is not in quorum or if the health or eligibility of any controller (other than the impaired controller) shows as false, you must correct the issue before shutting down the impaired controller. See Synchronize a node with the cluster.

Steps

  1. If AutoSupport is enabled, suppress automatic case creation by invoking an AutoSupport message:

    system node autosupport invoke -node * -type all -message MAINT=<# of hours>h

    The following AutoSupport message suppresses automatic case creation for two hours:

    cluster1:> system node autosupport invoke -node * -type all -message MAINT=2h

  2. Disable automatic giveback from the console of the impaired controller:

    storage failover modify -node impaired-node -auto-giveback-of false

    Note When you see Do you want to disable auto-giveback?, enter y.

    1. If you are running ONTAP version 9.17.1 and the impaired controller cannot be brought up or is already taken over, you must take the HA interconnect link down from the healthy controller before booting up the impaired controller. This prevents the impaired controller from performing automatic giveback.

      system ha interconnect link off -node healthy-node -link 0

      system ha interconnect link off -node healthy-node -link 1

      Note If you are not running ONTAP version 9.17.1, skip the above step and go to step 3.

  3. Take the impaired controller to the LOADER prompt:

    If the impaired controller is displaying…​ Then…​

    The LOADER prompt

    Go to the next step.

    System prompt or password prompt

    Take over or halt the impaired controller from the healthy controller: storage failover takeover -ofnode impaired_node_name -halt true

    The -halt true parameter brings the impaired node to the LOADER prompt.
What's next?

After shutting down the controller, change the boot media.