[ovirt-users] Re: Q: Engione 4.4.10 and New Host on CentOS Stream 9

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 <jirka(a)vesim.cz&gt; 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 <andreil1(a)starlett.lv&gt; 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 >>>>> _______________________________________________ >>>>> Users mailing list -- users(a)ovirt.org >>>>> To unsubscribe send an email to users-leave(a)ovirt.org >>>>> Privacy Statement: https://www.ovirt.org/privacy-policy.html >>>>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>>>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/IC3ZW2XY7BA... >>> _______________________________________________ >>> Users mailing list -- users(a)ovirt.org >>> To unsubscribe send an email to users-leave(a)ovirt.org >>> Privacy Statement: https://www.ovirt.org/privacy-policy.html >>> oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ >>> List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/SZCOBNKBBSF... > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/privacy-policy.html > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/C643UFIPQVG...