On 28.04.21 04:03, alexandre derumier wrote: > On 27/04/2021 20:38, JR Richardson wrote: >> 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. > > If you want same cluster on multiple datacenter, you really need low latency > (for proxmox && storage), and at least 3 datacenters to keep quorum. > > if you need a 2dc datacenter, with 1 primary && 1 backup as disaster recovery > > you could manually replicate a zfs or ceph storage to the backup dc (with > snapshot export/import), or other storage replication feature if you have a > san like netapp for example and do an rsync of /etc/pve. >
We know of setups which use rbd-mirror to mirror their production Ceph pool to a second DC for recovery on failure. It's still needs a bit of hands-on approach on setup and actual recovery can be prepared too (pre-create matching VMs, maybe lock them by default so no start is done by accident). We also know some city-gov IT people which run their cluster over multiple DCs, but they have the luck to be able to run redundant fiber with LAN-like latency between those DCs, which may not be an option for everyone. A multi-datacenter management is planned, but we currently are still fleshing out the basis, albeit some features required for that to happen are in-work. Nothing ready to soon, though, just mentioning as FYI. cheers, Thomas _______________________________________________ pve-user mailing list [email protected] https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-user
