[ovirt-users] Shared storage between DC

[Arsène Gschwind]

Hi Idan,

Thanks a lot for your answer, that's clear now.
I will change my setup and use 2 cluster in the same DC instead.
In the case using 2 cluster in the same DC I've noticed that all Storage 
domain have to be available for all clusters, in my case I use SAN 
Storage. Is this by design or is there a way to have some Storage Domain 
only available on one cluster but not on the others?

Regards,
Arsène

On 05/02/2016 02:33 PM, Idan Shaby wrote:
> Hi Arsène,
>
> The only storage domain that can be shared between datacenters is the 
> iso domain
> But that's not what you're looking for. You can't share a data domain 
> between two datacenters.
>
> As for importing a storage domain which is active on one datacenter to 
> another datacenter, there are two cases:
> - If the datacenters are in the same oVirt setup, that won't be 
> possible, and the operation will not be performed.
> - If the datacenters are in two different oVirt setups, the import to 
> the second datacenter will succeed, but you will experience issues in 
> the first datacenter.
> The reason for that is that the host in the second datacenter 
> overrides the storage domain metadata when importing it.
>
> Therefore, you cannot import a storage domain to a second datacenter 
> while it is active on the first one, anyway.
>
>
> Regards,
> Idan
>
> On Mon, May 2, 2016 at 10:44 AM, Arsène Gschwind 
> <arsene.gschwind at unibas.ch <mailto:arsene.gschwind at unibas.ch>> wrote:
>
>     Hi Roberto,
>
>     Thanks for your information but....
>     When I'm writing about DC I mean defined DC in oVirt and so far I
>     could see that when you define a storage domain in one oVirt DC it
>     will not be available in another DC and I don't know what would
>     happen if I would import it on the second DC.
>     In your setup, did you just define 1 DC and multiple clusters?
>
>     Regards,
>     Arsène
>
>
>     On 05/01/2016 01:37 PM, NUNIN Roberto wrote:
>>     Hi
>>     I have in production the scenery something similar to what you've
>>     described.
>>     The "enabling factor" is represented by an "storage
>>     virtualization" set of appliances, that maintain mirrored logical
>>     volume over fc physical volumes across two distinct datacenters,
>>     while giving rw simultaneus access to cluster hypervisors split
>>     between datacenters, that run the VMs.
>>
>>     So: cluster also is spread across dc, no need to import nothing.
>>     Regards,
>>
>>     *Roberto*
>>
>>
>>     Il giorno 01 mag 2016, alle ore 10:37, Arsène Gschwind
>>     <arsene.gschwind at unibas.ch <mailto:arsene.gschwind at unibas.ch>> ha
>>     scritto:
>>
>>>     Hi,
>>>
>>>     Is it possible to have a shared Storage domain between 2
>>>     Datacenter in oVirt?
>>>     We do replicate a FC Volume between 2 datacenter using FC SAN
>>>     storage technology and we have an oVirt cluster on each site
>>>     defined in separate DCs. The idea behind this is to setup a DR
>>>     site and also balance the load between each site.
>>>     What happens if I do import a storage domain already active in
>>>     one DC, will it break the Storage domain?
>>>
>>>     Thanks for any information..
>>>     Regards,
>>>     Arsène
>>>     _______________________________________________
>>>     Users mailing list
>>>     Users at ovirt.org <mailto:Users at ovirt.org>
>>>     http://lists.ovirt.org/mailman/listinfo/users
>>
>>     ------------------------------------------------------------------------
>>
>>     Questo messaggio e' indirizzato esclusivamente al destinatario
>>     indicato e potrebbe contenere informazioni confidenziali,
>>     riservate o proprietarie. Qualora la presente venisse ricevuta
>>     per errore, si prega di segnalarlo immediatamente al mittente,
>>     cancellando l'originale e ogni sua copia e distruggendo eventuali
>>     copie cartacee. Ogni altro uso e' strettamente proibito e
>>     potrebbe essere fonte di violazione di legge.
>>
>>     This message is for the designated recipient only and may contain
>>     privileged, proprietary, or otherwise private information. If you
>>     have received it in error, please notify the sender immediately,
>>     deleting the original and all copies and destroying any hard
>>     copies. Any other use is strictly prohibited and may be unlawful.
>
>
>     _______________________________________________
>     Users mailing list
>     Users at ovirt.org <mailto:Users at ovirt.org>
>     http://lists.ovirt.org/mailman/listinfo/users
>
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20160502/018d8fc4/attachment-0001.html>