[Users] How to efficiently share templates between datacenters which have local storages?

[Adam Tkáč]

2012/11/22 Itamar Heim <iheim at redhat.com>:
> On 11/22/2012 03:18 PM, Adam Tkáč wrote:
>>
>> 2012/11/22 Itamar Heim <iheim at redhat.com>:
>>>
>>> On 11/19/2012 08:02 PM, Adam Tkáč wrote:
>>>>
>>>>
>>>> Hello,
>>>>
>>>> I use oVirt 3.1.0.
>>>>
>>>> Does anyone have an idea how to efficiently share VM templates between
>>>> multiple datacenters which use local storages for VM images? I tried
>>>> two methods:
>>>>
>>>> 1. Add another cluster to "local storage datacenter" which failed with
>>>> oVirt error that this isn't allowed
>>>> 2. Tried to create new NFS data domain but this isn't possible because
>>>> oVirt interface allows me to create only NFS export or NFS ISO domains
>>>> (not data domain)
>>>>
>>>> So every time when I would like to use some template in other
>>>> datacenter, I have to export it to export domain and then import it in
>>>> other datacenter. This isn't optimal way because templates are
>>>> duplicated over datacenters. Duplication causes problems - when I want
>>>> to update template, I must update it and copy to all datacenters
>>>> again. And, of course, duplicated templates consume disk space.
>>>
>>>
>>>
>>> how did you envision doing this without consuming disk space? a shared
>>> NFS
>>> domain for the templates?
>>
>>
>> Exactly. To be more precise, I imagine either NFS/Fibre Channel/iSCSI
>> should be possible. However as I wrote above, I'm unable to create NFS
>> data domain when datacenter uses "local" storage.
>
>
> true, this is still a limitation we need to resolve (and plan to), but not
> immediate

Ok, thanks for clarification.

>>
>> Regards, A
>>
>>>>
>>>> "Non-oVirt" solution, when I manually export part of local storage of
>>>> one datacenter with templates via NFS and then mount it in other
>>>> datacenters is also ok but I'm not sure if it will work.
>>>
>>>
>>>
>>>
>
>