you could try: snapshot-create-as guest guestsnap --disk-only Thanks. --Xingxing Gao 2012/6/6 Eric Blake <eblake@xxxxxxxxxx>: > On 06/06/2012 07:05 AM, SimpleCloud wrote: >> Thanks a lot for the details. >> >> >> From http://wiki.libvirt.org/page/Snapshots, we have to pause the domain before taking snapshot and resume after. > > Actually, you don't have to do it yourself; libvirt takes care of doing > it for you if that's what qemu requires, as part of the libvirt snapshot > comand. > >> Is there any way to do "live" snapshotting for running domain or reduce pause time? > > You can do 'disk-only' snapshots instead of system checkpoints, which > are much faster (less than 1 second, while system checkpoints can be > seconds or even minutes long). And I'm also hoping to add code that > will support external system checkpoints by doing a live migration to > file coupled with a disk snapshot, which will hopefully reduce guest > downtime compared to the current mandatory guest downtime of the qemu > 'savevm' monitor command, but it may require qemu to implement more > features first. > > -- > Eric Blake eblake@xxxxxxxxxx +1-919-301-3266 > Libvirt virtualization library http://libvirt.org > > > _______________________________________________ > libvirt-users mailing list > libvirt-users@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/libvirt-users _______________________________________________ libvirt-users mailing list libvirt-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvirt-users
