Hi Andrei,
ovirt 4.4+ has to run with centos/ rhel 8, I would not recommend mix
versions of ovirt node version within one cluster. (there couldbe / will
be a problem with vdsm version on each node)
And yes cluster compatibility version number doesn't match ovirt version.
I would recommend to try to remove the oldest node from the cluster (if
upu have some spare nodes) and try to reinstall it to centos 8 or 9 with
standalone engine for test if it works or not.
Jirka
On 8/29/22 14:26, Andrei Verovski wrote:
Hi,
My oldest nodes are version 4.2 on CentOS 7.6.
What is the latest cluster compatibility level they support?
Looks like oVirt Engine version and cluster compatibility level do not match
number to number, e.g. my oVirt engine 4.4.10 seems can set cluster
compatibility level up to 4.6.
Someone from Red Hat, please clarify.
Thanks in advance.
On 29 Aug 2022, at 15:09, Jirka Simon <ji...@vesim.cz> wrote:
Hi Andrei,
as I know, you need to have to have your cluster with at least 4.3 version to
migrate to 4.5. I was facing the same problem with (not so) old hardware. and
i started to do step by step migration.
it means i created new cluster with fresh configuration with ovirt 4.5 and
cluster compatibility version 4.7 next to old one with 4.4. Iit is a good
opportunity to prepare whole cluster configuration in ansible for me :D
Then I migrate VMs one by one from old cluster to the new one. When is one node
free on old cluster I reinstall it and add to new cluster.
Maybe it is not the fastest solution, but i can arrange maintenance for each VM.
Jirka
On 8/29/22 10:13, Andrei Verovski wrote:
Hi,
I have cluster compatibility version 4.2, due to some old nodes.
From what I remember in oVirt 4.5 release notes (correct please, may be wrong
here), oVirt engine 4.5 requires cluster compatibility version >= 4.3.
Please clarify. Thanks.
On 28. 8. 2022, at 18:52, Andrei Verovski <andre...@starlett.lv> wrote:
Hi,
I have engine version 4.4.10.7-1.el8, is it possible to set up new node host on
CentOS Stream 9, or I need to upgrade engine to version 4.5 first (which is not
right now possible because of some quite old nodes) ?
yes, you generally need the latest version
You can keep your old nodes old, 4.2 based nodes are still working with 4.5
Thanks
Andrei
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