----- On Mar 9, 2018, at 7:05 PM, Bernd Lentes bernd.lentes@xxxxxxxxxxxxxxxxxxxxx wrote: > > It does not work as expected :-( > My lv's are clustered, but snapshotting a clustered lv requires to activate the > source lv exclusively on one node, which is not possible when it's mounted and > files on it are open. > So i have to try it with libvirt and qemu. > I'd like to create the snapshot while running the guest, take the backup, and > merge (or commit) the changes after the copy procedure, still with a running > guest. > Is there a way to do this ? I found > https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit , but my > software seems to be too old: > I have libvirt-1.2.5-23.3.1. But my virsh offers blockcommit: > > virsh # help blockcommit > NAME > blockcommit - Start a block commit operation. > > SYNOPSIS > blockcommit <domain> <path> [<bandwidth>] [<base>] [--shallow] [<top>] > [--delete] [--wait] [--verbose] [--timeout <number>] [--async] > > DESCRIPTION > Commit changes from a snapshot down to its backing image. > > OPTIONS > [--domain] <string> domain name, id or uuid > [--path] <string> fully-qualified path of disk > [--bandwidth] <string> bandwidth limit in MiB/s > [--base] <string> path of base file to commit into (default bottom of chain) > --shallow use backing file of top as base > [--top] <string> path of top file to commit from (default top of chain) > --delete delete files that were successfully committed > --wait wait for job to complete > --verbose with --wait, display the progress > --timeout <number> with --wait, abort if copy exceeds timeout (in seconds) > --async with --wait, don't wait for cancel to finish > > But it doesn't work ? Although help offers it ? > > Bernd > Hmm, it seems i really have a version too old. This is what i get: virsh # blockcommit windows7x64 /cluster/guests/servers_alive/sa_snap.qcow2 --wait --verbose error: Operation not supported: committing the active layer not supported yet Is there no way to achieve what i want ? Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Heinrich Bassler, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671 _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
