Hello @victors, This new limitation was introduced in the 6.2 version of Storware Backup & Recovery. In this strategy, you can make only full backups of OpenStack instances because every time a snapshot is kept on the VM, the disk type changes to QCOW2. Incremental backups are only available for CEPH volumes in SSH/libvirt strategy, https://storware.gitbook.io/backup-and-recovery/changelog