I am following this link. https://ovirt.org/documentation/admin-guide/chap-Backups_and_Migration.html#... I got response for GET /api/vms/4ef8b995-ae58-49d6-8980-ef0fa6688d92/snapshots/1b94ca4e-8c03-4166-8d29-2b831e24b90e/disks HTTP/1.1 Accept: application/xml Content-type: application/xml Identify disk id "Array ( [disk] => Array ( [0] => Array ( [actual_size] => 0 [alias] => GlanceDisk-8700235 [format] => cow [image_id] => a42bda58-7556-4ebe-a54d-03dc0a3b1f54 [propagate_errors] => false [provisioned_size] => 8589934592 [read_only] => false [shareable] => false [sparse] => true [status] => ok [storage_type] => image [wipe_after_delete] => false [snapshot] => Array ( [id] => 1b94ca4e-8c03-4166-8d29-2b831e24b90e ) [storage_domains] => Array ( [storage_domain] => Array ( [0] => Array ( [id] => ad6aea6d-ff90-457f-98eb-99380949e23a ) ) ) [name] => GlanceDisk-8700235 [description] => CentOS 7 Generic Cloud Image v1711 for x86_64 (8700235) [id] => dded245b-4a73-48b4-a1b4-ba98c37490ad ) What is the values that i have to give to the POST request in this api 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> to replace 1)vms ===>> 22222222-2222-2222-2222-222222222222 2)disk id 11111111-1111-1111-1111-111111111111 3)snapshot id 11111111-1111-1111-1111-111111111111