[PVE-User] Multi Data Center Cluster or Not

Alex Chekholko alex at calicolabs.com
Thu Apr 29 20:04:59 CEST 2021


Yes, this is the way I do it, each proxmox cluster is independent in its
own location but they all have access to NFS mounts or PBS server where I
can dump the vzdump images.  It is not too "HA" but you can backup/restore
VMs from one place to another or spin up yesterday's version.  It is
sufficient for our use cases and could be good enough for your DR.

On Wed, Apr 28, 2021 at 11:49 AM Arjen via pve-user <
pve-user at lists.proxmox.com> wrote:

>
>
>
> ---------- Forwarded message ----------
> From: Arjen <leesteken at protonmail.ch>
> To: Proxmox VE user list <pve-user at lists.proxmox.com>
> Cc:
> Bcc:
> Date: Wed, 28 Apr 2021 18:48:24 +0000
> Subject: Re: [PVE-User] Multi Data Center Cluster or Not
> On Tuesday, April 27th, 2021 at 20:38, JR Richardson <
> jmr.richardson at gmail.com> wrote:
>
> > Hi All,
> >
> > I'm looking for suggestions for geo-diversity using PROXMOX
> > Clustering. I understand running hypervisors in the same cluster in
> > multiple data centers is possible with high capacity/low latency
> > inter-site links. What I'm learning is there could be better ways,
> > like running PROXMOX backup servers (PBS) with Remote Sync. Using PBS
> > is interesting but would require manually restoring nodes should a
> > failure occur.
> >
> > I'm looking for best practice or suggestions in topology that folks
> > are using successfully or even tales of failure for what to avoid.
>
> I haven't actually done this, so feel free to ignore this or inform me of
> problems with this approach:
>
> Set-up multiple Proxmox systems/clusters, each in a separate data center
> but don't cluster them over the data centers.
> Set-up a VPN that allows Proxmox and VMs in each data center to connect to
> the others. It does not need low latency.
> Have a PBS VM on each of them and backup your VMs (many times a day, if
> you want) to the local PBS and sync all the PBSs.
> Distribute the VMs manually over the different systems, so that the users
> have the lowest latency.
> Leave room for more VMs, this makes then operate more smooth and would
> allow taking over load from other systems.
> If a data center becomes unusable, restore the VMs that were running there
> on the other systems manually.
>
> In case of problems, nothing will be automated and you'll lose work since
> the most recent available backup, but at least you know that you have
> several other working Proxmox systems/clusters up and running and capable
> of restoring and running the affected VMs.
> The syncing of backups only depends on changes in the set of deduplicated
> chunks and does not need low latency or high speed.
>
> kind regards, Arjen
>
>
>
>
>
> ---------- Forwarded message ----------
> From: Arjen via pve-user <pve-user at lists.proxmox.com>
> To: Proxmox VE user list <pve-user at lists.proxmox.com>
> Cc: Arjen <leesteken at protonmail.ch>
> Bcc:
> Date: Wed, 28 Apr 2021 18:48:24 +0000
> Subject: Re: [PVE-User] Multi Data Center Cluster or Not
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