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Install and maintain

Complete the restoration and replacement process - AFF C400

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You must verify the HA state of the chassis and return the failed part to NetApp, as described in the RMA instructions shipped with the kit.

Step 1: Verify and set the HA state of the chassis

You must verify the HA state of the chassis, and, if necessary, update the state to match your system configuration.

  1. In Maintenance mode, from either controller module, display the HA state of the local controller module and chassis: ha-config show

    The HA state should be the same for all components.

  2. If the displayed system state for the chassis does not match your system configuration:

    1. Set the HA state for the chassis: ha-config modify chassis HA-state

      The value for HA-state can be one of the following:

      • ha

      • mcc

      • mcc-2n

      • mccip

      • non-ha

    2. Confirm that the setting has changed: ha-config show

  3. If you have not already done so, recable the rest of your system.

  4. Reinstall the bezel on the front of the system.

Step 2: Switch back aggregates in a two-node MetroCluster configuration

After you have completed the FRU replacement in a two-node MetroCluster configuration, you can perform the MetroCluster switchback operation. This returns the configuration to its normal operating state, with the sync-source storage virtual machines (SVMs) on the formerly impaired site now active and serving data from the local disk pools.

This task only applies to two-node MetroCluster configurations.

Steps

  1. Verify that all nodes are in the enabled state: metrocluster node show

    cluster_B::>  metrocluster node show

DR                           Configuration  DR
Group Cluster Node           State          Mirroring Mode
----- ------- -------------- -------------- --------- --------------------
1     cluster_A
              controller_A_1 configured     enabled   heal roots completed
      cluster_B
              controller_B_1 configured     enabled   waiting for switchback recovery
2 entries were displayed.

  2. Verify that resynchronization is complete on all SVMs: metrocluster vserver show

  3. Verify that any automatic LIF migrations being performed by the healing operations were completed successfully: metrocluster check lif show

  4. Perform the switchback by using the metrocluster switchback command from any node in the surviving cluster.

  5. Verify that the switchback operation has completed: metrocluster show

    The switchback operation is still running when a cluster is in the waiting-for-switchback state:

    cluster_B::> metrocluster show
Cluster              Configuration State    Mode
--------------------	------------------- 	---------
 Local: cluster_B configured       	switchover
Remote: cluster_A configured       	waiting-for-switchback

    The switchback operation is complete when the clusters are in the normal state.:

    cluster_B::> metrocluster show
Cluster              Configuration State    Mode
--------------------	------------------- 	---------
 Local: cluster_B configured      		normal
Remote: cluster_A configured      		normal

    If a switchback is taking a long time to finish, you can check on the status of in-progress baselines by using the metrocluster config-replication resync-status show command.

  6. Reestablish any SnapMirror or SnapVault configurations.

Step 3: Return the failed part to NetApp

Return the failed part to NetApp, as described in the RMA instructions shipped with the kit. See the Part Return and Replacements page for further information.