The failback retry option is necessary when failback of vApps fails with the Incomplete state. When you perform a retry, Veeam Backup & Replication restarts failback only for the failed VMs that are added to vApps and will not process VMs that have been processed successfully. As a result, failback will take less time and will not consume as many resources as when processing a whole vApp.
To retry failback:
- Open the Home view.
- In the inventory pane, navigate to the Replicas > Active node.
- In the working area, select the necessary vApp and select Retry Failback on the ribbon. Alternatively, you can right-click the necessary vApp and select Retry failback.