Production failover
When a recovery server is created, it stays in the Standby state. The corresponding virtual machine does not exist until you start a failover. Before starting a failover process, you must create at least one disk image backup (with bootable volume) of the original machine.
When starting the failover process, you select the recovery point (backup) of the original machine from which a virtual machine with the predefined parameters will be created. The failover operation uses the "run VM from a backup" functionality. The recovery server gets the transition state Finalization. This process implies transferring the server's virtual disks from the backup storage ('cold' storage) to the disaster recovery storage ('hot' storage).
During the Finalization, the server is accessible and operable, although the performance is lower than normal. You can open the server console by clicking the Console is ready link. The link is available in the VM State column on the Disaster Recovery > Servers screen and in the server's Details view.
When the Finalization is completed, the server performance reaches its normal value. The server state changes to Failover. The workload is now switched from the original machine to the recovery server in the cloud site.
If the recovery server has a protection agent inside, the agent service is stopped in order to avoid interference (such as starting a backup or reporting outdated statuses to the backup component).
On the diagram below, you can see both the failover and failback processes.
