[ovirt-users] overt node el6 to el7 upgrade

[Nicolas Ecarnot]

Le 11/05/2015 19:30, Jiří Sléžka a écrit :
> Hi Chuck,
>
> I also have not upgraded my hosts from el6 to el7 but I am about to do
> it soon. IMHO it is as simple as
>
> for every el6 host
>
> 1) move one el6 host to maintenance (to migrate all guests out of it)
> 2) remove that host from manager
> 3) reinstall this host with el7
> 4) add this new host in manager
> 5) migrate guests to el7 host

Hi,

I'm using oVirt 3.5.1 and here is what I did :
in a cluster with CentOS 6.6 hosts, I added a brand new CentOS 7.0 host 
and when adding it to the cluster, oVirt refused to add it because 
mixing 6.x and 7.x was not allowed.

I had to create a second cluster in the same DC, and put my new 7.x host 
into this second cluster.
What I'm doing at present is progressively upgrade each host and move 
them into the next 7.x cluster.

Please note that migrating VM between 6.x and 7.x hosts is limited along 
what is described in the following BZ :

https://bugzilla.redhat.com/show_bug.cgi?id=1150191

Best regards,

-- 
Nicolas ECARNOT