When EVS disks on an ECS are faulty or ECS data is lost due to misoperations, you can use a backup to restore the ECS.
The historical data at the backup point in time will overwrite the current ECS data. The restoration cannot be undone.
VMs are shut down when restoring ECSs. Therefore, perform a restoration job during off-peak hours.
In the backup list, view the restoration status. When the backup enters the Available state and no new failed restoration job exists in Task Status, the restoration is successful.
To query failed restoration jobs, see Processing Failed Jobs.
If a Windows ECS is restored, data disks may fail to be displayed due to Windows limitations.
You need to manually set these data disks to be online. For details, see Data Disks Are Not Displayed After a Windows ECS Is Restored.