Re: [ovirt-users] oVirt 3.6 on CentOS 6.7 based HyperConverged DC : Upgradable?
Le 29/03/2017 à 15:54, Yedidyah Bar David a écrit :
On Wed, Mar 29, 2017 at 4:35 PM, Nicolas Ecarnot
<nicolas(a)ecarnot.net> wrote:
> [Please ignore the previous msg]
>
> Hello,
Hello Didi,
> One of our DC is a very small one, though quite critical.
> It's almost hyper converged : hosts are compute+storage, but the engine is
> standalone.
And you intend to keep it that way? You didn't mention below.
I intend to keep it this way.
> At first glance, I would go this way (feel free to comment) :
> - upgrade the OS of the engine : 6.7 -> 7.3
How? This isn't supported, in principle, although it might work.
Mmmm, yep, you're right. Many people documented it.
I'm not very fond of playing for such a critical part.
The "official" way is using engine-backup to backup and
restore it.
See also:
https://bugzilla.redhat.com/show_bug.cgi?id=1332463
Ok,
Sent you a question there.
> During this upgrade, I have no constraint to keep everything
running, total
> shutdown is acceptable.
So you can also do a full backup and restore.
I could.
But I may run out of hosts at present.
Create an NFS export domain
somewhere, export all your VMs there, recreate everything from scratch,
import the VMs. Will take much longer, but then you don't need to risk/
test/prepare for problems in upgrading gluster.
Well, so your overall opinion is that I should stick to KISS, correct?
--
Nicolas ECARNOT