compatibility relationship between datacenter, ovirt and cluster
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? thanks
you should look at the feature page. if you do not fully upgrade cpu/data center you simply continue to work with 3.3 features On 04/10/2014 08:50 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?
thanks
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-- Dafna Ron
On Fri, Apr 11, 2014 at 10:09 AM, Dafna Ron <dron@redhat.com> wrote:
you should look at the feature page. if you do not fully upgrade cpu/data center you simply continue to work with 3.3 features
For oVirt I only found 3.0 features page (adapted form RHEV itself..) here: http://www.ovirt.org/OVirt_3.0_Feature_Guide It is quite generic. Also I found release notes for 3.x, but not for 3.4 yet, at least from page http://www.ovirt.org/Documentation Can anyone add this link to it? http://www.ovirt.org/OVirt_3.4_Release_Notes I can do it, but I'm not a "maintainer..." and this is the main page... let me know if you wish me to do. You can also follow RHEV documents, tough its versions are not completely aligned with oVirt versions. To get information about clusters and DataCenters compatibility version: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtua... Regarding the features: https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtua... Similar pages for RHEV 3.4 beta, but I don't know their degree of consistency at this time. https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtua... https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Virtua... HIH, Gianluca
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...
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 <iheim@redhat.com> 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...
On 04/11/2014 10:35 PM, Tamer Lima wrote:
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.
some features in the engine do not require anything from hosts/cluster/DC, so you get them without upgrading the hosts/clusters/dc's. for features that require an upgraded host/cluster/dc, you will only get them when you upgrade them accordingly. (if you upgrade a cluster, features which are not DC level, will start being available post cluster upgrade, etc.)
On Fri, Apr 11, 2014 at 9:56 AM, Itamar Heim <iheim@redhat.com <mailto:iheim@redhat.com>> 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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participants (4)
-
Dafna Ron -
Gianluca Cecchi -
Itamar Heim -
Tamer Lima