Challenge
A backup job for an Oracle Linux Virtualization Manager and Red Hat Virtualization VM could not enable incremental backup support. One of the following warnings may occur:
Unable to enable ovirt incremental backups for disk '':. Full scan backups will be performed. Please see KBxxxxx for more information
Unable to create incremental backup: Cannot backup VM. Incremental backup is not supported.
Unable to backup disks incrementally, using full scan backup.
This error specifically occurs when the disk is raw.
Solution
Here are the two most common causes of this issue and how to resolve them.
