Hi,
No, I move VMs around with an Export Storage domain.
All NFS is exported only to the local machine.
Nothing is “shared” between hosts. But because I want to export VMs, we use “shared” storage in oVirt instead of “local”.
Best,
--
Dr Christophe Trefois, Dipl.-Ing.
Technical Specialist / Post-Doc
UNIVERSITÉ DU LUXEMBOURG
LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
Campus Belval | House of Biomedicine
6, avenue du Swing
L-4367 Belvaux
T: +352 46 66 44 6124
F: +352 46 66 44 6949
http://www.uni.lu/lcsb
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> On 06 Sep 2016, at 10:06, Yedidyah Bar David <didi@redhat.com> wrote:
>
> On Tue, Sep 6, 2016 at 9:53 AM, Christophe TREFOIS
> <christophe.trefois@uni.lu> wrote:
>> Personally my use case is that I have 4 machines with different specs and storage sizing. So I setup four DC with 1 host each. Then I have hosted engine on one of the hosts. Storage is local shared via NFS so that I can move VMs around.
>
> Not sure I fully understand.
>
> You use each of the 4 machines for both storage and running VMs?
> And export nfs on each to all the others?
>
> So that if a VM needs more CPU/memory then disk IO, you can move
> it to another machine and hopefully get better performance even
> though the storage is not local?
>
> I admit that it sounds very reasonable, and agree that doing this
> with nfs is easier than with iSCSI. If you don't mind the risk of
> local-nfs-mount locks, fine. As others noted, seems like it's quite
> a low risk.
>
>>
>> At this point we are not interested necessarily in HA.
>>
>> Maybe for you that's the definition of a Dev environment as production has other attributes than just the type of storage?
>
> Dev or Prod is for you to define :-)
>
> How much time/money do you loose if a machine dies? If a machine
> locks up until someone notices and handles?
>
>>
>> Would be nice to hear your thoughts about this.
>
> As wrote above, sounds reasonable if you understand the risks
> and can live with them.
>
> Looking at the future you might want to check HC:
>
> https://www.ovirt.org/develop/release-management/features/ gluster/glusterfs- hyperconvergence/
>
>>
>> Kind regards,
>> Christophe
>>
>> Sent from my iPhone
>>
>>> On 06 Sep 2016, at 08:45, Yedidyah Bar David <didi@redhat.com> wrote:
>>>
>>> On Tue, Sep 6, 2016 at 12:34 AM, Christophe TREFOIS
>>> <christophe.trefois@uni.lu> wrote:
>>>> So basically we need at least 2 nodes to enter the realm of testing and maintained?
>>>
>>> I think some people occasionally use hosted-engine with local
>>> iSCSI storage on a single machine. AFAIK it's not tested by CI
>>> or often, but patches are welcome - e.g. using lago and
>>> ovirt-system-tests.
>>>
>>> Can you please explain your intentions/requirements?
>>>
>>> Even if it works, oVirt is not designed for single-machine
>>> _production_ use. For that, I think that most people agree that
>>> virt-manager is more suitable. oVirt on a single machine is
>>> usually for testing/demonstration/learning/etc.
>>>
>>>>
>>>> If we’re talking pure oVirt here.
>>>>
>>>> --
>>>>
>>>> Dr Christophe Trefois, Dipl.-Ing.
>>>> Technical Specialist / Post-Doc
>>>>
>>>> UNIVERSITÉ DU LUXEMBOURG
>>>>
>>>> LUXEMBOURG CENTRE FOR SYSTEMS BIOMEDICINE
>>>> Campus Belval | House of Biomedicine
>>>> 6, avenue du Swing
>>>> L-4367 Belvaux
>>>> T: +352 46 66 44 6124
>>>> F: +352 46 66 44 6949
>>>> http://www.uni.lu/lcsb
>>>>
>>>>
>>>>
>>>> ----
>>>> This message is confidential and may contain privileged information.
>>>> It is intended for the named recipient only.
>>>> If you receive it in error please notify me and permanently delete the original message and any copies.
>>>> ----
>>>>
>>>>
>>>>
>>>>> On 05 Sep 2016, at 16:31, Fernando Frediani <fernando.frediani@upx.com.br> wrote:
>>>>>
>>>>> Adding Kimchi to oVirt node perhaps may be the easiest option. It can be pretty useful for many situations and doesn't need such thing like mounting NFS in localhost.
>>>>>
>>>>> It is not nice to not have a All-in-One stable solution anymore as this can help with its adoption for later growth.
>>>>>
>>>>> oVirt-Cockpit looks nice and intresting.
>>>>>
>>>>> Fernando
>>>>>
>>>>>
>>>>>> On 05/09/2016 05:18, Barak Korren wrote:
>>>>>>> On 4 September 2016 at 23:45, zero four <zfnoctis@gmail.com> wrote:
>>>>>>> ...
>>>>>>> I understand and acknowledge that oVirt is not targeted towards homelab
>>>>>>> setups, or at least small homelab setups. However I believe that having a
>>>>>>> solid configuration for such use cases would be a benefit to the project as
>>>>>>> a whole.
>>>>>> As others have already mentioned, using the full oVirt with engine in
>>>>>> a single host scenario can work, but is not currently actively
>>>>>> maintained or tested.
>>>>>>
>>>>>> There are other options originating from the oVirt community however.
>>>>>>
>>>>>> One notable option is to use the Cockpit-oVirt plugin [1] which can
>>>>>> use VDSM to manage VMs on a single host.
>>>>>>
>>>>>> Another option is to use the Kimchi project [2] for which discussion
>>>>>> for making it an oVirt project had taken part in the past [3]. It
>>>>>> seems that also some work for inclusion in oVirt node was also planned
>>>>>> at some point [4].
>>>>>>
>>>>>> [1]: http://www.ovirt.org/develop/release-management/features/ cockpit/
>>>>>> [2]: https://github.com/kimchi-project/kimchi
>>>>>> [3]: http://lists.ovirt.org/pipermail/board/2013-July/ 000921.html
>>>>>> [4]: http://www.ovirt.org/develop/release-management/features/ node/kimchiplugin/
>>>>>
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>>>
>>>
>>> --
>>> Didi
>
>
>
> --
> Didi
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