- Nov 6, 2018
My experience with the upgrade was very smooth, the current 6.0 (6.0-7) is very stable on our cluster. A "lazy sysadmin" can freeze it and forget it for a while.just curious i have a proxmox on 5.4 not yet on cluster the idea is to upgrade to 6.0 because cannot get ZFS to boot im guessing because it running HP smart array P440ar on HBA mode (even disabled uefi) but saw on 6.0 it boots up on uefi my question is how stable is it? going to try out this week and if it works how stable or recomended to combine it on a cluster with 5.4 on the other hosts?
In the first step of my upgrade only one node was running 6.0. I did a breief test on what was working on the 5.4 web UI and had no particular problems. Could still stop/start (even the 6.0 node machines), replicate vms and also migrating is supported from a lower version to a higher one, the other way around should work but it's not supported.
It goes by itself however that you should upgrade all the cluster nodes as soon as you can. No need to have different configurations and kernels on the cluster nodes.
It also goes by itself that you have to stick closely to the upgrade procedure, which is not difficult but missing steps would lead to issues I guess.