Verifying the health of the MetroCluster configuration

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

Procedure

  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