Configuring the clusters into a MetroCluster configuration
You must peer the clusters, mirror the root aggregates, create a mirrored data aggregate, and then issue the command to implement the MetroCluster operations.
- Disabling automatic drive assignment (if doing manual assignment in ONTAP 9.4)
In ONTAP 9.4, if your MetroCluster IP configuration has fewer than four external storage shelves per site, you must disable automatic drive assignment on all nodes and manually assign drives. - Verifying drive assignment of pool 0 drives
You must verify that the remote drives are visible to the nodes and have been assigned correctly. - Peering the clusters
The clusters in the MetroCluster configuration must be in a peer relationship so that they can communicate with each other and perform the data mirroring essential to MetroCluster disaster recovery. - Creating the DR group
You must create the disaster recovery (DR) group relationships between the clusters. - Configuring and connecting the MetroCluster IP interfaces
You must configure the MetroCluster IP (MCCIP) interfaces that are used for replication of each node's storage and nonvolatile cache. You then establish the connections using the MCCIP interfaces. This creates iSCSI connections for storage replication. - Verifying or manually performing pool 1 drives assignment
Depending on the storage configuration, you must either verify pool 1 drive assignment or manually assign drives to pool 1 for each node in the MetroCluster IP configuration. The procedure you use depends on the version of ONTAP you are using. - Enabling automatic drive assignment in ONTAP 9.4
In ONTAP 9.4, if you disabled automatic drive assignment as directed previously in this procedure, you must reenable it on all nodes. - Mirroring the root aggregates
You must mirror the root aggregates to provide data protection. - Creating a mirrored data aggregate on each node
You must create a mirrored data aggregate on each node in the DR group. - Implementing the MetroCluster configuration
You must run the metrocluster configure command to start data protection in a MetroCluster configuration. - Checking the MetroCluster configuration
You can check that the components and relationships in the MetroCluster configuration are working correctly. You should do a check after initial configuration and after making any changes to the MetroCluster configuration. You should also do a check before a negotiated (planned) switchover or a switchback operation. - Completing ONTAP configuration
After configuring, enabling, and checking the MetroCluster configuration, you can proceed to complete the cluster configuration by adding additional SVMs, network interfaces and other ONTAP functionality as needed.
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