[PVE-User] Move VM's HDD incl. snapshots from one Ceph to another

[Mark Adams]

On Mon, 19 Aug 2019 at 11:59, Uwe Sauter <uwe.sauter.de at gmail.com> wrote:

> Hi,
>
> @Eneko
>
> Both clusters are hyper-converged PVE clusters each running its own Ceph
> cluster. On the older PVE 5 cluster I created a new RBD
> storage configuration for the PVE6 Ceph. So I can access the new Ceph from
> the old Cluster.
>
> I also migrated some VMs via the GUI from one Ceph to the other but those
> VMs didn't have snapshots.
>
> My question is: how can I move a RBD image with snapshots from one cluster
> to the other while keeping the history (snapshots)?
>
>
> @Mark:
>
> Do you think that this would work?
>
> rbd --cluster ceph --pool vdisks export --export-format 2 vm-101-disk-0 -
> | \
> rbd --cluster cluster2 --pool vdisks import --export-format 2 -
> vm-101-disk-0
>

Hi Uwe, I don't remember the exact command without checking the ceph docs -
but I believe it was something straight forward like rbd export
ceph/vm-101-disk-0  | ssh user at server  'rbd import - cluster2/vm-101-disk-0'

I -think- that sends all the snapshots as well, though again I can't
remember exactly (it's been a while since I did this...) - you can use rbd
export-diff and import-diff to send just the changes between snapshots
though in case it doesn't and you want to build it up from the earliest
snapshot.

Sorry that's not more exact!

Regards,
Mark


>
> Regards,
>
>         Uwe
>
>
>
> Am 19.08.19 um 12:30 schrieb Mark Adams:
> > It is relatively straight forward using cli, use the rbd export (and
> > export-diff) command over ssh.
> >
> > On Mon, 19 Aug 2019, 12:26 Eneko Lacunza, <elacunza at binovo.es> wrote:
> >
> >> Hi Uwe,
> >>
> >> El 19/8/19 a las 10:14, Uwe Sauter escribió:
> >>> is it possible to move a VM's disks from one Ceph cluster to another,
> >> including all snapshots that those disks have? The GUI
> >>> doesn't let me do it but is there some commandline magic that will move
> >> the disks and all I have to do is edit the VM's config file?
> >>>
> >>>
> >>> Background: I have two PVE clusters, one of which is already PVE 6. Now
> >> I need to move the VMs from the older to the newer cluster
> >>> so I can re-install those machines with PVE 6. I know that an upgrade
> is
> >> possible but I'd like the cleaner approach of re-installing.
> >> What storage are you using? (the snapshot thing can be a problem).
> >>
> >> Cheers
> >> Eneko
> >>
> >> --
> >> Zuzendari Teknikoa / Director Técnico
> >> Binovo IT Human Project, S.L.
> >> Telf. 943569206
> >> Astigarraga bidea 2, 2º izq. oficina 11; 20180 Oiartzun (Gipuzkoa)
> >> www.binovo.es
> >>
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