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Unplanned Failover

Unplanned failover occurs following source system events such as source system failure, or events that lead to downtime for production access. Unplanned failover is initiated from the destination system, and provides production access to the original destination resource from a point-in-time snapshot.

When you initiate an unplanned failover, you can select whether to use the most recent data copy or a snapshot of the data (if available) as the data source.

When the connection to the source system is reestablished, the original source resource is placed into destination mode. Use the Reprotect option to synchronize the destination storage resource, and then resume the replication session.

NOTE:When performing file replication, it is not recommended to modify the file mobility network after performing an unplanned failover. After the connection between the source and destination systems is restored, the result may be that both NAS Servers are in production mode.

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