Replica Failover

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    Failover is a process of switching from the original vApp in the production Organization vDC to its vApp replica in the disaster recovery Organization vDC. During failover, Veeam Backup & Replication recovers the vApp replica to the required restore point and switches from the original vApp to its replica. As a result, you have a fully functional vApp within several minutes, and your users can access services and applications with minimum disruption.

    Tip

    You can fail over to replicas not only when a disaster strikes the production Organization vDC, but also to test replicas for recoverability. If the original vApps and vApp replicas are located in the same network, consider temporary disconnecting the original vApps from the network to avoid IP address or machine name conflicts.

    The failover operation is performed in the following way:

    1. Veeam Backup & Replication puts all replication activities on hold.
    2. The state of the vApp replica is changed from Ready to Processing. After failover completes successfully, the sate is changed from Processing to Failover.
    3. Veeam Backup & Replication recovers a vApp replica to the required restore point.
    4. Veeam Backup & Replication powers on the vApp replica.

    The original vApp still exists and failover does not change its state: if it was powered on when you performed failover, it remains powered on when failover completes; if it was powered off, it will remain in this state.

    1. All changes made to the vApp replica while the replica is running in the Failover state are written to the delta file of the snapshot and stored in a target host.
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