Anno domini 2019 Tue, 19 Nov 05:21:22 -0600
hal scripsit:
> Is anyone doing QEMU/KVM incremental backups of a running VM? I'm trying
> to find some info on how best to accomplish the backup as well as a
> restore.
>
> What I want is to run my VM on a single SSD but take an incremental
> snapshot of the VM every few hours, saving it to SATA RAID. I only want
> to save what's changed (delta image?) and not an entire copy of the
> image each time.
>
> I find a lot of info like the link[1] below showing how to properly
> snapshot and copy the base image, but not a lot showing how to actually
> recover if I need to restore. Is it just a matter of first saving
> the base image, and then saving every snapshot after that? Combining
> them with the `blockcommit` command if I need to restore?

I do it on ZFS with snapshots. Works quite nice :)

Nik

>
> Thanks
>
> [1]
> https://wiki.libvirt.org/page/Live-disk-backup-with-active-blockcommit
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