Configuring the ONTAP Mediator service from a MetroCluster IP configuration

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The ONTAP Mediator service must be configured on the ONTAP node for use in a MetroCluster IP configuration.

Before you begin
  • The ONTAP Mediator must have been successfully installed on a network location that can be reached by both MetroCluster sites.

  • You must have the IP address of the host running the ONTAP Mediator service.

  • You must have the username and password for the ONTAP Mediator service.

  • All nodes of the MetroCluster IP configuration must be online.

About this task
  • This task enables automatic unplanned switchover by default.

  • This task can be performed on the ONTAP interface of any node in the MetroCluster IP configuration.

  • A single installation of the ONTAP Mediator service can be configured with up to five MetroCluster IP configurations.

Steps
  1. Add the ONTAP Mediator service to ONTAP using the following command:

    metrocluster configuration-settings mediator add -mediator-address ip-address-of-mediator-host

    Note You will be prompted for the username and password for the Mediator admin user account.
  2. Verify that the automatic switchover feature in enabled:

    metrocluster show

  3. Verify that the Mediator is now running.

    1. Show the Mediator virtual disks:

      storage disk show -container-type mediator

       cluster_A::> storage disk show -container-type mediator
                              Usable           Disk    Container   Container
       Disk                   Size Shelf Bay Type    Type        Name      Owner
       ---------------- ---------- ----- --- ------- ----------- --------- --------
       NET-1.5                   -     -   - VMDISK  mediator    -         node_A_2
       NET-1.6                   -     -   - VMDISK  mediator    -         node_B_1
       NET-1.7                   -     -   - VMDISK  mediator    -         node_B_2
       NET-1.8                   -     -   - VMDISK  mediator    -         node_A_1
    2. Set the privilege mode to advanced:

      set advanced

       cluster_A::> set advanced
    3. Display the initiators labelled as mediator:

      storage iscsi-initiator show -label mediator

       cluster_A::*> storage iscsi-initiator show -label mediator
         (storage iscsi-initiator show)
        +                                                                     Status
       Node Type Label    Target Portal      Target Name                      Admin/Op
       ---- ---- -------- ------------------ -------------------------------- --------
       node_A_1
            mailbox
                 mediator 1.1.1.1       iqn.2012-05.local:mailbox.target.6616cd3f-9ef1-11e9-aada-00a098ccf5d8:a05e1ffb-9ef1-11e9-8f68- 00a098cbca9e:1 up/up
       node_A_2
            mailbox
                 mediator 1.1.1.1       iqn.2012-05.local:mailbox.target.6616cd3f-9ef1-11e9-aada-00a098ccf5d8:a05e1ffb-9ef1-11e9-8f68-00a098cbca9e:1 up/up