Description of problem: QCow VERSION is not displayed for disk images created in 4.0 Version-Release number of selected component (if applicable): Version-Release number of selected component (if applicable): vdsm-4.19.2-1.gitd9c3ccb.el7.centos.x86_64 ovirt-engine-4.1.0.3-0.0.master.20170122091652.gitc6fc2c2.el7.centos.noarch How reproducible: Always Steps to Reproduce: 1.Create QCow disks with compatibility version 4.0 2.Check the QCow version with rest API >>> No QCow version is displayed 3.Upgrade Cluster and DC to Compatibility version 4.1 - works fine 4.Amend the image - works fine and QCow version is now displayed "qcow2 v3" Actual results: No QCow version is displayed Expected results: QCow version should be displayed for disk images created with 4.0 as qcow2_v2 Additional info: Before amend operation---------------------------------- <name>vm12_Disk4</name><link href="/ovirt-engine/api/disks/8b821413-5f05-4340-a27b-47dedee5d911/permissions" rel="permissions"/><link href="/ovirt-engine/api/disks/8b821413-5f05-4340-a27b-47dedee5d911/statistics" rel="statistics"/><actual_size>200704</actual_size><alias>vm12_Disk4</alias><format>cow</format><image_id>9cd97140-7706-42c6-9f9a-201b938b7d58</image_id><propagate_errors>false</propagate_errors><provisioned_size>1073741824</provisioned_size><shareable>false</shareable><sparse>true</sparse><status>ok</status><storage_type>image</storage_type><wipe_after_delete>false</wipe_after_delete><disk_profile href="/ovirt-engine/api/diskprofiles/90ca7fed-87ce-491e-af54-8dc365539c84" id="90ca7fed-87ce-491e-af54-8dc365539c84"/><quota id="9a4b3449-d5fc-4ba1-97ad-fc2ec8b3f2e5"/><storage_domain href="/ovirt-engine/api/storagedomains/11b486af-fb4a-4317-97e3-d657fb309de0" id="11b486af-fb4a-4317-97e3-d657fb309de0"/><storage_domains><storage_domain href="/ovirt-engine/api/storagedomains/11b486af-fb4a-4317-97e3-d657fb309de0" id="11b486af-fb4a-4317-97e3-d657fb309de0"/></storage_domains></disk><disk href="/ovirt-engine/api/disks/fee683ea-f319-478b-a6e5-e2e972687261" id="fee683ea-f319-478b-a6e5-e2e972687261"><actions><link href="/ovirt-engine/api/disks/fee683ea-f319-478b-a6e5-e2e972687261/sparsify" rel="sparsify"/><link href="/ovirt-engine/api/disks/fee683ea-f319-478b-a6e5-e2e972687261/export" rel="export"/><link href="/ovirt-engine/api/disks/fee683ea-f319-478b-a6e5-e2e972687261/move" rel="move"/><link href="/ovirt-engine/api/disks/fee683ea-f319-478b-a6e5-e2e972687261/copy" rel="copy"/></actions> Disk after Amend operation <qcow_version>qcow2_v3</qcow_version>
Tested with the following code: ----------------------------------------------- ovirt-engine-4.1.1-0.1.el7.noarch rhevm-4.1.1-0.1.el7.noarch vdsm-4.19.5-1.el7ev.x86_64 QCow version is now displayed for disk images created with 4.0 Moving to VERIFIED! <name>Disk40</name> <link href="/ovirt-engine/api/disks/5902194e-7bb7-443a-a685-3444038a146d/permissions" rel="permissions"/> <link href="/ovirt-engine/api/disks/5902194e-7bb7-443a-a685-3444038a146d/statistics" rel="statistics"/> <actual_size>1073741824</actual_size> <alias>Disk40</alias> <format>cow</format> <image_id>c6829951-2602-4123-8cc2-82ff138e91c2</image_id> <propagate_errors>false</propagate_errors> <provisioned_size>5368709120</provisioned_size> <qcow_version>qcow2_v2</qcow_version> *********HERE!!!!!!!!!********* <shareable>false</shareable> <sparse>true</sparse> <status>ok</status> <storage_type>image</storage_type> <wipe_after_delete>false</wipe_after_delete> <disk_profile href="/ovirt-engine/api/diskprofiles/a004c2a3-1f44-4390-a635-a5d0ee736517" id="a004c2a3-1f44-4390-a635-a5d0ee736517"/>