Use cases of the commands used in the failover process

The following use cases are based on this representative environment: Two media servers (mediaserver1 and mediaserver2), that back up to volumes on a NearStore storage system (SystemA). SystemA contains volumes that are replicated, using SnapMirror, to another NearStore (SystemB). Mediaserver1 is backing up to volume1 on SystemA, and mediaserver2 is backing up to volume2 on SystemA.

Use Case: Disaster Recovery Failover Scenario
SystemA is unavailable, and SystemB is configured as the new DSU.
Use Case: Disaster Recovery Resync Scenario
SystemA is taken down for a period of time (possibly for maintenance), and SystemB is configured as the new DSU.

Parent topic: Disaster recovery using volume SnapMirror on NearStore storage systems