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

[Itamar Heim]

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?

>
> "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.