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Hi, currently i'm following https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit. I 'm playing around with it and it seems to be quite nice. What i want is a daily consistent backup of my image file of the guest. I have the idea of the following procedure: - Shutdown the guest (i can live with a downtime of a few minutes, it will happen in the night). And i think

...? > Or is it only safe doing blockcommit on a stopped guest ? Live blockcommit is safe, and exists so you don't have to stop the guest. For a bit more insight into what is going on under the hood, the slides from my KVM Forum talk from a few years back may give some nice insights: http://events17.linuxfoundation.org/sites/events/files/slides/2015-qcow2-expanded.pdf > > Thanks for any answer. > > Bernd > > P.S. Is the same procedure possible when the guest disk(s) reside directly in a plain logical volume, without a file system in-between ? Live blockcommit works onto...

...ing blockcommit on a stopped guest ? > > Live blockcommit is safe, and exists so you don't have to stop the guest. > > For a bit more insight into what is going on under the hood, the slides > from my KVM Forum talk from a few years back may give some nice insights: > http://events17.linuxfoundation.org/sites/events/files/slides/2015-qcow2-expanded.pdf > >> >> Thanks for any answer. >> >> Bernd >> >> P.S. Is the same procedure possible when the guest disk(s) reside directly in a >> plain logical volume, without a file system in-b...