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ONTAP MetroCluster

Verifying the health of the MetroCluster configuration

Contributors netapp-thomi
PDFs

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