Verifying the health of the MetroCluster configuration

Contributors netapp-thomi

You should check the health of the MetroCluster configuration to verify proper operation.

Steps
  1. Check that the MetroCluster is configured and in normal mode on each cluster:

    metrocluster show

    cluster_A::> metrocluster show
    Cluster                   Entry Name          State
    ------------------------- ------------------- -----------
     Local: cluster_A         Configuration state configured
                              Mode                normal
                              AUSO Failure Domain auso-on-cluster-disaster
    Remote: cluster_B         Configuration state configured
                              Mode                normal
                              AUSO Failure Domain auso-on-cluster-disaster
  2. Check that mirroring is enabled on each node:

    metrocluster node show

    cluster_A::> metrocluster node show
    DR                           Configuration  DR
    Group Cluster Node           State          Mirroring Mode
    ----- ------- -------------- -------------- --------- --------------------
    1     cluster_A
                  node_A_1       configured     enabled   normal
          cluster_B
                  node_B_1       configured     enabled   normal
    2 entries were displayed.
  3. Check that the MetroCluster components are healthy:

    metrocluster check run

    cluster_A::> metrocluster check run
    
    Last Checked On: 10/1/2014 16:03:37
    
    Component           Result
    ------------------- ---------
    nodes               ok
    lifs                ok
    config-replication  ok
    aggregates          ok
    4 entries were displayed.
    
    Command completed. Use the "metrocluster check show -instance" command or sub-commands in "metrocluster check" directory for detailed results.
    To check if the nodes are ready to do a switchover or switchback operation, run "metrocluster switchover -simulate" or "metrocluster switchback -simulate", respectively.
  4. Check that there are no health alerts:

    system health alert show

  5. Simulate a switchover operation:

    1. From any node’s prompt, change to the advanced privilege level:
      set -privilege advanced

      You need to respond with y when prompted to continue into advanced mode and see the advanced mode prompt (*>).

    2. Perform the switchover operation with the -simulate parameter:
      metrocluster switchover -simulate

    3. Return to the admin privilege level:
      set -privilege admin