Upgrade CEPH packages

[andreas1o]

I have Proxmox 5.3.9 with Cep 12.2.10 and would like to upgrade to 12.2.12.
Do I need to do one node at a time? What happens when one node is at 12.2.12 and the others at 12.2.10 could there be any compability issues ?

The reason I'm asking is if I have to plan and take the entire cluster down or if I can do this "online" so to say ?

Thank you Proxmox for a wonderful product.

 

[Alwin]

Do I need to do one node at a time?

That's for other reasons a good idea. Usually people migrate all VM/CT to a different host before starting the update.

What happens when one node is at 12.2.12 and the others at 12.2.10 could there be any compability issues ?

These are minor updates and the cluster can run with different versions for the time of the upgrade.

The reason I'm asking is if I have to plan and take the entire cluster down or if I can do this "online" so to say ?

After the package update, the services need to be restarted and a reboot might be necessary (eg. kernel). But that can be done one at a time.

You can test your upgrade in a virtual Proxmox VE cluster beforehand.
https://pve.proxmox.com/wiki/Nested_Virtualization