[virt-tools-list] Possibility to define directory used to save snapshots?

OmegaPhil OmegaPhil at startmail.com
Sat Jan 27 14:45:12 UTC 2018

On 27/01/18 14:34, Pavel Hrdina wrote:
> On Sat, Jan 27, 2018 at 01:04:32PM +0000, OmegaPhil wrote:
>> Using Virtual Machine Manager 1.4.3 here on Devuan Ascii with libvirt0
>> 3.0.0-4+deb9u1. I have a collection of VMs on this machine (so single
>> host, no migrations, no shared storage etc etc) that are stored in a
>> storage pool outside of the root volume (since the root volume is mostly
>> dedicated to the OS) - so not '/var/lib/libvirt/images'.
>> The OS volume is running out of space, and I found that snapshots were
>> being stored separately from the VMs, at '/var/lib/libvirt/qemu/save' -
>> is there a way for me to configure where snapshots end up, and
>> preferably in the same storage location as the VMs?
>> '/etc/libvirt/storage' seems to only store configuration for the storage
>> pools that host the VMs.
>> Thanks for any help
> Hi,
> So you are not probably talking about snapshot but about suspending the
> guests.  Currently virt-manager uses internal snapshots and it works
> only for qcow2 disk images, the snapshot itself is stored inside that
> disk image.
> The path "/var/lib/libvirt/qemu/save" is used for "saving" the virtual
> machine.  This is handled by libvirt, virt-manager only controls
> libvirt, and unfortunately there is no way how to change the default
> path.
> The only suggestion is that you can mount different volume under that
> path to not use the root one.
> Pavel

Ah apologies, confused snapshotting and saving. Yes, I save VMs and
expect any produced files to end up on the VM's storage pool basically
(this is also important for backing up the VM, that everything required
is in the same place).

Thanks, I'll look into making a feature request for libvirt a bit later.
Yes, perhaps mount bind trickery etc could be used as a last resort (but
its easier just to clear up some space at this point).

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