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Verifying negotiated switchover

You can test the negotiated (planned) switchover operation to confirm uninterrupted data availability.

About this task

This test validates that data availability is not affected (except for Microsoft Server Message Block (SMB)) by switching the cluster over to the second data center.

This test should take about 30 minutes.

This procedure has the following expected results:

  • The metrocluster switchover command will present a warning prompt.

    If you respond yes to the prompt, the site the command from is issued will switch over to the partner site.

  • Nodes at the partner site should shut down gracefully and remain at the LOADER> prompt.

  1. Confirm that all nodes are in the configured state and normal mode: metrocluster node show

    Example

    cluster_A::>  metrocluster node show

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


  2. Begin the switchover operation: metrocluster switchover

    Example

    cluster_A::> metrocluster switchover
    Warning: negotiated switchover is about to start. It will stop all the data Vservers 
    on cluster "cluster_B" and automatically re-start them on cluster "cluster_A". It will 
    finally gracefully shutdown cluster "cluster_B".

  3. Confirm that the local cluster is in the configured state and switchover mode: metrocluster node show

    Example

    cluster_A::>  metrocluster node show

    Cluster                        Configuration State    Mode
    ------------------------------ ---------------------- ------------------------
    Local: cluster_A                configured             switchover
    Remote: cluster_B               not-reachable          -
                  configured             normal


  4. Confirm that the switchover operation was successful: metrocluster operation show

    Example

    cluster_A::>  metrocluster operation show

    cluster_A::> metrocluster operation show
      Operation: switchover
          State: successful
     Start Time: 2/6/2016 13:28:50
       End Time: 2/6/2016 13:29:41
         Errors: -


  5. Use the vserver show and network interface show commands to verify that DR SVMs and LIFs have come online.