How MetroCluster configurations provide data and configuration replication

MetroCluster configurations use a variety of ONTAP features to provide synchronous replication of data and configuration between the two MetroCluster sites.

Configuration protection with the configuration replication service
The ONTAP configuration replication service (CRS) protects the MetroCluster configuration by automatically replicating the information to the DR partner.
Replication of SVMs during MetroCluster operations
The ONTAP configuration replication service (CRS) provides redundant data server configuration and mirroring of data volumes that belong to the SVM. If a switchover occurs, the source SVM is brought down and the destination SVM, located on the surviving cluster, becomes active.
How MetroCluster configurations use SyncMirror to provide data redundancy
Mirrored aggregates using SyncMirror functionality provide data redundancy and contain the volumes owned by the source and destination storage virtual machine (SVM). Data is replicated into disk pools on the partner cluster. Unmirrored aggregates are also supported.
How NVRAM or NVMEM cache mirroring and dynamic mirroring work in MetroCluster configurations
The nonvolatile memory (NVRAM or NVMEM, depending on the platform model) in the storage controllers is mirrored both locally to a local HA partner and remotely to a remote disaster recovery (DR) partner on the partner site. In the event of a local failover or switchover, this configuration enables data in the nonvolatile cache to be preserved.

Give documentation feedback