10:45 a.m.
On Tue, Feb 16, 2016 at 9:30 AM, Johan Kooijman <mail(a)johankooijman.com> wrote:
Yes. I pasted the information on AIO, that was wrong on my end. I
have an
engine running on dedicated hardware and about 20 nodes in this cluster. I
do like to upgrade without downtime :) I know how to achieve this on the
node-end, but since I have to go from C6 to C7, I wonder what the procedure
would be for engine.
Please explain exactly what you are trying to do.
Note that engine is still supported on el6.
(new) Hosts are not.
all-in-one is running both together, thus is not supported on el6 either.
IIRC we do not have a tested procedure to upgrade the engine from C6 to C7
yet, see also:
https://bugzilla.redhat.com/show_bug.cgi?id=1234257
https://bugzilla.redhat.com/show_bug.cgi?id=1285743
Best,
On Mon, Feb 15, 2016 at 9:21 PM, Alexander Wels <awels(a)redhat.com> wrote:
>
> On Monday, February 15, 2016 08:21:40 PM Johan Kooijman wrote:
> > Hi Alexander,
> >
> > Thanks for the input! My 3.5 is running on C6 however:
> >
> > Upgrade of All-in-One on EL6 is not supported in 3.6. VDSM and the
> > packages
> > requiring it are not built anymore for EL6
> >
>
> Well that was a piece of information you forgot to mention in your initial
> email. So now I am not entirely sure what you are trying to do. Are you
> trying
> to save your existing VMs when you reinstall your machine?
>
>
> > On Mon, Feb 15, 2016 at 3:37 PM, Alexander Wels <awels(a)redhat.com>
> > wrote:
> > > On Monday, February 15, 2016 02:40:47 PM Johan Kooijman wrote:
> > > > Hi,
> > > >
> > > > Can anybody recommend me best practice upgrade path for an upgrade
> > > > from
> > > > oVirt 3.5 on C6 to 3.6 on C7.2?
> > >
> > > The answer sort of depends on what you want. Do you want no downtime
> > > on
> > > your
> > > VMs or is downtime acceptable. Also are you running hosted engine or
> > > not?
> > >
> > > This is the basic plan which can be adjusted based on what your needs
> > > are:
> > >
> > > 1. Update engine from 3.5 to 3.6 (if hosted engine might be trickier,
> > > not
> > > sure
> > > haven't played with hosted engine).
> > > 2. Create a new 3.6 cluster.
> > > 3. Put 1 host in maintenance (which will migrate the VMs to the other
> > > hosts).
> > > 4. Remove the host from the DC.
> > > 5. Install C7.2 on the host
> > > 6. Add that host to the new 3.6 cluster.
> > > 7. Optional (you can cross cluster live migrate some VMs from 6 to 7
> > > (just
> > > not
> > > the other way around, so once the VM is moved its stuck in the new
> > > cluster).
> > > 8. Go to 3 until all hosts are moved.
> > > 9. Your 3.5 cluster should now be empty, and can be removed.
> > > 10. Upgrade your DC to 3.6 (Can't upgrade if any lower clusters
> > > exist).
> > >
> > > If you can have downtime, then just shut down the VMs running on the
> > > host
> > > in
> > > step 3 before putting it in maintenance. Once the host is moved to the
> > > new
> > > cluster you can start the VMs.
> > >
> > > Alexander
> > > _______________________________________________
> > > Users mailing list
> > > Users(a)ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
>
--
Met vriendelijke groeten / With kind regards,
Johan Kooijman
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