This is the doubt regarding to the rest api <https://ovirt.org/documentation/admin-guide/chap-Backups_and_Migration.html#backing-up-a-virtual-machine> Can you please tell me what would be the response of the api request of step 4 ((will it be a success or a error)) ===================================================================== Attach the snapshot to the backup virtual machine and activate the disk: POST /api/vms/22222222-2222-2222-2222-222222222222/disks/ HTTP/1.1 Accept: application/xml Content-type: application/xml <disk id="11111111-1111-1111-1111-111111111111"> <snapshot id="11111111-1111-1111-1111-111111111111"/> <active>true</active> </disk> ============================================================================================== if we are setting up a bare VM without any backup mechanism in it and try to attach a vm to it.