Hey Jamie,

thanks for replying. I was wondering about gluster g-rep, but what if
something that just happened to me (gluster f*ckup) will get replicated
too. At this point (lost 3 HCI clusters due to Gluster) I am not really
trusting this piece of software with my live data *and* my backups.

I am really protecting myself against Gluster than anything else. So for
backup purposes: The less Gluster, the better.

-Chris.

On 06/02/2020 18:31, Jayme wrote:
> You should look at the gluster georeplication option, I think it would
> be more appropriate for disaster recovery purposes. It is also possible
> to export VMs as OVA which can then be reimported back into oVirt. I
> actually just wrote an ansible playbook to do this very thing and intend
> to share my finding and playbooks with the ovirt community hopefully
> this week.
>
> On Thu, Feb 6, 2020 at 12:18 PM Christian Reiss
> <email@christian-reiss.de <mailto:email@christian-reiss.de>> wrote:
>
>     Hey folks,
>
>     Running a 3-way HCI (again (sigh)) on gluster. Now the _inside_ of the
>     vms is backup'ed seperatly using bareos on an hourly basis, so files
>     are
>     present with worst case 59 minutes data loss.
>
>     Now, on the outside I thought of doing gluster snapshots and then
>     syncing those .snap dirs away to a remote 10gig connected machine on a
>     weekly-or-so basis. As those contents of the snaps are the oVirt images
>     (entire DC) I could re-setup gluster and copy those files back into
>     gluster and be done with it.
>
>     Now some questions, if I may:
>
>        - If the hosts remain intact but gluster dies, I simply setup
>     Gluster,
>     stop the ovirt engine (seperate standalone hardware) copy everything
>     back and start ovirt engine again. All disks are accessible again
>     (tested). The bricks are marked as down (new bricks, same name). There
>     is a "reset brick" button that made the bricks come back online again.
>     What _exactly_ does it do? Does it reset the brick info in oVirt or
>     copy
>     all the data over from another node and really, really reset the brick?
>
>     - If the hosts remain intact, but the engine dies: Can I re-attach the
>     engine the the running cluster?
>
>     - If hosts and engine dies and everything needs to be re-setup would it
>     be possible to do the setup wizard(s) again up to a running point then
>     copy the disk images to the new gluster-dc-data-dir? Would oVirt rescan
>     the dir for newly found vms?
>
>     - If _one_ host dies, but 2 and the engine remain online: Whats the
>     oVirt way of resetting up the failed one? Reinstalling the node and
>     then
>     what? From all the cases above this is the most likely one.
>
>     Having had to reinstall the entire Cluster three times already scares
>     me. Always gluster related.
>
>     Again thank you community for your great efforts!
>
>
>     --
>     with kind regards,
>     mit freundlichen Gruessen,
>
>     Christian Reiss
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--
with kind regards,
mit freundlichen Gruessen,

Christian Reiss