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BugZero found this defect 628 days ago.
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Veeam | kb4345
Converting Disk from RAW to QCOW2 to Allow For Incremental Backup
Last update date:
8/31/2022
Affected products:
Veeam Backup for Oracle Linux KVM and Red Hat Virtualization
Affected releases:
ALL
Fixed releases:
No fixed releases provided.
Description:
Purpose
This article documents how to convert a Disk from RAW to QCOW2, allowing Veeam Backup for Oracle Linux KVM and Red Hat Virtualization to create an incremental backup of the disk. As documented in the Veeam Backup for Oracle Linux KVM and Red Hat Virtualization User Guide, Incremental Backup requires that "the disk is formatted in QCOW2 format."
Solution
Starting with oVirt version 4.5, RHV REST API can be used to convert a RAW disk to QCOW2 format. For more information, review: oVirt REST API documentation - disk - convert POST Example API request: curl \ --cacert '/etc/pki/ovirt-engine/ca.pem' \ --user 'admin@internal:mypassword' \ --request POST \ --header 'Version: 4' \ --header 'Content-Type: application/xml' \ --header 'Accept: application/xml' \ --data ' <action> <disk> <sparse>true</sparse> <format>cow</format> </disk> </action> ' \ https://<myengine.example.com>/ovirt-engine/api/disks/<disk id>/convert
More Information
As an alternate way to convert the disks, back up the VM that has RAW disks using Veeam Backup for Oracle Linux KVM and Red Hat Virtualization and then restore the VM disks in the QCOW2 format.
