[ovirt-users] Upgrade patch 3.5 -> 3.6

[Yedidyah Bar David]

On Tue, Feb 16, 2016 at 9:30 AM, Johan Kooijman <mail at 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 at 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 at 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 at ovirt.org
>> > > http://lists.ovirt.org/mailman/listinfo/users
>>
>
>
>
> --
> Met vriendelijke groeten / With kind regards,
> Johan Kooijman
>
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> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
>



-- 
Didi