Shutting down a node in a two-node MetroCluster configuration

To shut down the impaired node, you must determine the status of the node and, if necessary, switch over the node so that the healthy node continues to serve data from the impaired node storage.

1. Check the MetroCluster status to determine whether the impaired node has automatically switched over to the healthy node: metrocluster show
2. Depending on whether an automatic switchover has occurred, proceed according to the following table:

   If the impaired node...	Then...
   Has automatically switched over	Proceed to the next step.
   Has not automatically switched over	Perform a planned switchover operation from the healthy node: metrocluster switchover
   Has not automatically switched over, you attempted switchover with the metrocluster switchover command, and the switchover was vetoed	Review the veto messages and, if possible, resolve the issue and try again. If you are unable to resolve the issue, contact technical support.

3. Resynchronize the data aggregates by running the metrocluster heal -phase aggregates command from the surviving cluster.

   controller_A_1::> metrocluster heal -phase aggregates 
   [Job 130] Job succeeded: Heal Aggregates is successful.
   

   If the healing is vetoed, you have the option of reissuing the metrocluster heal command with the -override-vetoes parameter. If you use this optional parameter, the system overrides any soft vetoes that prevent the healing operation.

4. Verify that the operation has been completed by using the metrocluster operation show command.

   controller_A_1::> metrocluster operation show
       Operation: heal-aggregates
         State: successful
   Start Time: 7/25/2016 18:45:55
      End Time: 7/25/2016 18:45:56
        Errors: -
   

5. Check the state of the aggregates by using the storage aggregate show command.

   controller_A_1::> storage aggregate show
   Aggregate     Size Available Used% State   #Vols  Nodes            RAID Status
   --------- -------- --------- ----- ------- ------ ---------------- ------------
   ...
   aggr_b2    227.1GB   227.1GB    0% online       0 mcc1-a2          raid_dp, mirrored, normal...

6. Heal the root aggregates by using the metrocluster heal -phase root-aggregates command.

   mcc1A::> metrocluster heal -phase root-aggregates
   [Job 137] Job succeeded: Heal Root Aggregates is successful
   

   If the healing is vetoed, you have the option of reissuing the metrocluster heal command with the -override-vetoes parameter. If you use this optional parameter, the system overrides any soft vetoes that prevent the healing operation.

7. Verify that the heal operation is complete by using the metrocluster operation show command on the destination cluster:

   mcc1A::> metrocluster operation show
     Operation: heal-root-aggregates
         State: successful
    Start Time: 7/29/2016 20:54:41
      End Time: 7/29/2016 20:54:42
        Errors: -
   
   

8. On the impaired controller module, disconnect the power supplies.