ok, Itamar, thanks. now I can understand how the things work.
but I have a question based on the fact that I have ovirt-engine on version 3.4 and DC and Cluster both are configured on version 3.3 : - This means that I have "available" features on version 3.4 , but these features just will work when I update DC and Cluster to version 3.4 ? (this is what I understand, following Dafna Ron response) so, to really obtain the benefits of the new version (3.4) I need to run the commands (yum update ovirt-engine-setup, engine-setup) and also increase the version of compatibility within the datacenter, cluster and host to the version 3.4 - and what I have if only update ovirt-engine to version 3.4 and not update dc, cluster neither hosts. I realized changes on ovirt web admin interface, improvements on icons and maybe new fields. On Fri, Apr 11, 2014 at 9:56 AM, Itamar Heim <[email protected]> wrote: > On 04/10/2014 10:50 PM, Tamer Lima wrote: > >> Hi, >> >> >> yesterday my ovirt was 3.3 >> my datacenter and cluster (compatibility version) was aligned with ovirt >> 3.3 >> >> >> today my ovirt is now 3.4. >> and my datacenter and cluster (compatibility version) remains 3.3 (with >> the option enabled to change for 3.4) >> >> browsing the ovirt admin page I see 2 occurrences of ovirt version: >> datacenter tab = 3.3 >> cluster tab =3.3 >> >> >> >> I would like to understand what means all these versions, the same >> version for a lot of important things, and how my ovirt works/behaves >> using different versions. >> >> all my doubts together : >> What means datacenter in version 3.3(or lower version) when ovirt is 3.4 >> ? >> what means cluster in version 3.3 when ovirt is 3.4? >> what means change the "compatibility version" for datacenter? >> what means change the "compatibility version" for cluster? >> > > Gianluca replied with links for specific features. > I'll reply on the general concept: > - a host can be upgraded to a specific 3.x version. it can be in any > 3.y cluster which is <= 3.x > once the host is upgraded, 3.x host-level features can be used > - a cluster can be upgraded to 3.x once all active hosts in it are at > least with 3.x. > once the cluster is upgraded, 3.x cluster-level features can be used > - a data cetner can be upgaeded to 3.x once all clusters in it are at > least with 3.x > once the DC is upgraded, 3.x DC-level features can be used > > i don't think we have it clearly documented per feture if it is host > level, cluster level or DC level. when in doubt, ask... >
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