Failover Undo

Failover undo is one of the ways to finalize failover. When you undo failover, you switch back from a replica to the source VM. Veeam Backup & Replication discards all changes made to the replica while it was in the Failover state.

The failover undo operation is performed in the following way:

  1. Veeam Backup & Replication reverts the replica to its pre-failover state. To do this, Veeam Backup & Replication powers off the replica and gets it back to the latest restore point in the replication chain. Changes that were written to the protective virtual disks (<disk_name>-interim.vmdk) while the replica was in the Failover state are discarded.
  2. The state of the replica gets back to Ready, and Veeam Backup & Replication resumes replication activities for the source VM on the source host.

Page updated 6/14/2024

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