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

[Martin Sivak]

Hi,

you should take a look at the hyper converged way of installing oVirt.
We have a cockpit wizard that does almost everything for you:

https://www.ovirt.org/documentation/gluster-hyperconverged/chap-Deploying_Hyperconverged/

It uses three hosts and collocates the VMs together with Gluster storage.

Best regards

--
Martin Sivak
SLA  /oVirt

On Fri, Nov 3, 2017 at 8:39 AM, Artem Tambovskiy
<artem.tambovskiy at gmail.com> 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. 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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>
>
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