Proxmox at Hetzner

[svendsen]

Hi Team!

I have a running Proxmox server with 4 disks in ZFS pool running at Hetzner.
I have outgrown the server and now need to upgrade. As we all know, Hetzner does not support moving existing disks to new server hardware and thus I need to migrate/transfer existing Proxmox to the new server.

I don't run critical servers in Proxmox but big ones so a backup+restore is not an option.
What would be your suggestion? pve-zsync? zfs send? Which would of course require that I install Proxmox+ZFS in a basic configuration on the new server.
Any other options?

Another question - do you have experience running Proxmox (ceph) cluster at Hetzner? Is it worth the efforts or is the performance too low?
I'm happy with the ZFS setup - but would be cool with a cluster for redundancy...

THANKS!!

 

[aaron]

ZFS send and recv will most likely be your best option to keep the downtime as minimal as possible. You will have to either recreate the VM configs are move them over manually.

Running a Ceph cluster on Hetzner? No idea, can you get a fast (10Gbit or more) dedicated network running between the nodes? What about additional networks for Corosync?

Setting up a cluster has quite a lot more requirements regarding the network.
You could also take a look at the Storage Replication between two nodes which is based on ZFS to have a working copy in case of a disaster?

 

[svendsen]

ZFS send and recv will most likely be your best option to keep the downtime as minimal as possible. You will have to either recreate the VM configs are move them over manually.

Thanks. That was my idea too.... Any reason why you wouldn't use pve-zsync for this?

Running a Ceph cluster on Hetzner? No idea, can you get a fast (10Gbit or more) dedicated network running between the nodes? What about additional networks for Corosync?

Setting up a cluster has quite a lot more requirements regarding the network.
You could also take a look at the Storage Replication between two nodes which is based on ZFS to have a working copy in case of a disaster?

Thanks - again just insync with my own idea/experience

 

[aaron]

Any reason why you wouldn't use pve-zsync for this?

You can use it of course. But since this is a one of thing where you will do a send/recv probably only once, maybe two times before you shut down the VM for the final send/recv, you might just do it manually.