snapshots and backups from ZFS storage

vkhera

Member
Feb 24, 2015
192
15
18
Maryland, USA
I'm running 4.0 beta, and I'm trying to figure out how safe the backups are for a live running machine. By safe, I mean they restore everything at an exact consistent state.

My VM's are configured to use a local ZFS storage, so the virtual drives are raw zvol's on the base system.

On my backups, I select the mode "snapshot". I'm not sure this is supposed to take a ZFS snapshot on the zvol when backing up, but I do not see any during that time.

Does the snapshot backup method work on live VMs with ZFS backed virtual disks? By "work" I mean takes a point-in-time backup of all the disks. It was a bit unclear from reading in the forum and the wiki about how snapshots work with ZFS. If I take an explicit snapshot using the GUI, I do see zfs snapshots for the zvols.