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Providing disaster recovery for SVMs

Data stored in a Storage Virtual Machine (SVM) is susceptible to disaster, either through hardware failure or environmental catastrophe on the cluster. You can protect the SVM data volumes and configuration by creating a mirror copy of the data volumes and configuration details on a destination SVM on the destination cluster.

You can create a SnapMirror relationship (also referred as SVM disaster recovery relationship) from the source SVM to the destination SVM to provide asynchronous disaster recovery. When you create a SnapMirror relationship, you can choose to replicate all or a subset of configuration (excluding network and protocol configuration) along with the data volumes, depending on the cluster setup.

When the source SVM is unavailable, the cluster administrator of the destination cluster can start the destination SVM to provide data access, with minimum disruption.

When the source SVM is available, the cluster administrator of the source cluster can resynchronize the data and configuration from the destination SVM to serve data from the source SVM.

As the cluster administrator, you must configure the source and destination SVMs for disaster recovery and understand the tasks to manage the SVM disaster recovery relationships.

You cannot set up an SVM disaster recovery relationship for SVMs with Infinite Volumes.

You can use snapmirror commands to configure SVM disaster recovery and manage the SVM disaster recovery relationships. After the configuration is complete, the SnapMirror operations are executed only at the SVM level.