Hi, one question - what I have noticed, need confirmation please.
I have made one volume templates (50GB) (win2008, sysreped, etc). When I deployed 1 VM from that template, it created 1 clone of the original template volume of 50GB, and it is declared as backing file When i deployed another VM from that template, I can see that this VM now have "differential" disk, that is a disk that has it's backing disk. [root@cs2 ~]# qemu-img info /var/lib/libvirt/images/87924eb1-1e46-4e93-8735-7cff0daefd40 image: /var/lib/libvirt/images/87924eb1-1e46-4e93-8735-7cff0daefd40 file format: qcow2 virtual size: 50G (53687091200 bytes) *disk size: 177M* cluster_size: 65536 backing file: /var/lib/libvirt/images/*65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a* [root@cs2 ~]# qemu-img info /var/lib/libvirt/images/* 65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a* image: /var/lib/libvirt/images/65e6c5a8-0c60-41e9-ba2f-9f1c82282d1a file format: qcow2 virtual size: 50G (53687091200 bytes) disk size: 12G cluster_size: 65536 Is this the default behaviour when deploying new VM from template - first create clone of the original template volume in full size (50Gb), and then create differentials disks for each VM, refering to this one main volume(backing disk) ? Thanks, -- Andrija Panić
