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On Tuesday, April 27th, 2021 at 20:38, JR Richardson <[email protected]>
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
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