From Ernest.Beinrohr at axonpro.sk Fri Sep 23 11:44:20 2016 Content-Type: multipart/mixed; boundary="===============9092437554941942257==" MIME-Version: 1.0 From: Ernest Beinrohr To: users at ovirt.org Subject: Re: [ovirt-users] Cannot change Cluster Compatibility Version when a VM is active Date: Fri, 23 Sep 2016 17:44:05 +0200 Message-ID: <84373872-ed3d-51b7-790e-dd22a0a12350@axonpro.sk> In-Reply-To: 2CB4E8C8E00E594EA06D4AC427E429920F5AB077@fabamailserver.fabagl.fabasoft.com --===============9092437554941942257== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable This is a multi-part message in MIME format. --------------7BE1C0DAF9A990FF33D53A2A Content-Type: text/plain; charset=3Dwindows-1252; format=3Dflowed Content-Transfer-Encoding: 7bit On 23.09.2016 16:49, Bruckner, Simone wrote: > > Hi all, > > I am trying to upgrade an oVirt installation (3.6.7.5-1.el6) to 4.0. = > My datacenters and clusters have 3.5 compatibility settings. > I just finished this. Only took about 2 weeks for 8 hosts ;) I had to do = this: 3.5 -> 3.6 - upgrade engine to 3.6 - create a new cluster with CL 3.6 - for each host: - maintenance - reinstall to el7 + RPMs (yay for puppet) - add to new 3.6 cluster - activate - migrate some machines to new cluster (no way back!) - elevate CL of old (empty) cluster to 3.6 - migrate everything back for each host 3.6 -> 4.0 - for each host: - maintenance - upgrade RPMS to 4.0 - activate - elevate CL to 4.0 (can be done with running VMs) -- = Ernest Beinrohr, AXON PRO Ing , RHCE = , RHCVA = , LPIC = , VCA , +421-2-62410360 +421-903-482603 --------------7BE1C0DAF9A990FF33D53A2A Content-Type: text/html; charset=3Dwindows-1252 Content-Transfer-Encoding: 8bit
On 23.09.2016 16:49, Bruckner, Simone wrote:

Hi all,

=C2=A0

=C2=A0 I am trying to u= pgrade an oVirt installation (3.6.7.5-1.el6) to 4.0. My datacenters and clusters have 3.5 compatibility settings.=

I just finished this. Only took about 2 weeks for 8 hosts ;) I had to do this:

3.5 -> 3.6

- upgrade engine to 3.6
- create a new cluster with CL 3.6
- for each host:
=C2=A0 - maintenance
=C2=A0 - reinstall to el7 + RPMs (yay for puppet)
=C2=A0 - add to new 3.6 cluster
=C2=A0 - activate
=C2=A0 - migrate some machines to new cluster (no way back!)
- elevate CL of old (empty) cluster to 3.6
- migrate everything back for each host

3.6 -> 4.0
- for each host:
=C2=A0 - maintenance
=C2=A0 - upgrade RPMS to 4.0
=C2=A0 - activate
- elevate CL to 4.0 (can be done with running VMs)

--
Ernest Beinrohr, AXON PRO
Ing, RHCE, RHCVA, LPIC, VCA,
+421-2-62410360 +421-903-482603
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