It appears the XenServer 6.5 has been released and it's quite a bit faster than 6.2 in many ways.

When I installed 6.2 I accepted the various defaults and end up with a system that is awkwardly partitioned. Root is rather small (and perpetually running out of space) while a 250Gb partition sits empty. To this end I'm thinking about doing a rebuild with v6.5.

I've been reading about the process and apparently you can't mix 6.2 and 6.5 in the same pool. If I take the pool members (3) out one at a time, rebuild them and put them in a new pool can I move the various VMs over?


To upgrade XenServer from 6.2 to 6.5 - start with the pool master and work your way through each server. If you've done a repartition you don't have to do the editing steps again - as long as you select 'upgrade' during the 6.5 install it won't repartition the disks.

  • FWIW - here is a link on how to set the root partition size. – ethrbunny Mar 11 '15 at 10:45

The pool master and servers in the pool need to be the same XenServer version. To answer your question, yes you can remove one server at a time, upgrade, join the pool, then migrate the VM's. As always, make sure you make a backup first (export snapshots) before performing the upgrade.

  • So the process would be 1) rolling upgrade -> 2) pull each machine out, rebuild and then rejoin? Or should I do 2) -> 1)? – ethrbunny Feb 10 '15 at 15:39
  • I've always exported the VMs out to separate storage, performed the upgrade, joined the pool, then import the VMs back. I'm sure you could do Steps 1-2-3 as you mention above, however I have not personally done that in a production environment. – Jake A Feb 10 '15 at 15:49

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