[ovirt-users] Advise needed: building cheap HA oVirt cluster with just 2 physical servers

[Karli Sjöberg]

On fre, 2017-11-03 at 10:39 +0300, Artem Tambovskiy wrote:
> Thanks Eduardo!
> 
> I think I can find a third server to build a glusterFS storage. So
> the first step will be to install a self-hosted engine on the new
> server and start building a glusterFS storage. 

You´ll need to build the Gluster storage first, as you´ll want to
install the Hosted Engine _in_ the HA Gluster storage, right?

/K

> IS there any easy way to migrate existing 5 VM's running on the
> second bare-metal oVirt host, right? I found a little bit tricky
> moving oVirt backups between the hosts (at least I failed to
> replicate the existing VM's on the second server).
> 
> Regards,
> Artem
> 
> 
> 
> On Fri, Nov 3, 2017 at 10:24 AM, Eduardo Mayoral <emayoral at arsys.es>
> wrote:
> > For HA you will need some kind of storage available to all the
> > compute nodes in the cluster. If you have no external storage and
> > few nodes, I think your best option for storage is gluster , and
> > the minimum number of nodes you will need for HA is 3 (the third
> > gluster node can be metadata-only, but you still need that third
> > node to give you quorum, avoid split-brains and have something that
> > you can call "HA" with a straight face.
> > Eduardo Mayoral Jimeno (emayoral at arsys.es)
> > Administrador de sistemas. Departamento de Plataformas. Arsys
> > internet.
> > +34 941 620 145 ext. 5153
> > On 03/11/17 08:10, Artem Tambovskiy wrote:
> > > Looking for a design advise on oVirt provisioning. I'm running a
> > > PoC lab on single bare-metal host (suddenly it was setup with
> > > just Local Storage domain) and 
> > > no I'd like to rebuild the setup by making a cluster of 2
> > > physical servers, no external storage array available. That are
> > > the options here? is there any options to build cheap HA cluster
> > > with just 2 servers? 
> > > 
> > > Thanks in advance!
> > > 
> > > Artem
> > > 
> > > 
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