[one-users] Storage architecture question

[Tino Vazquez]

Dear Gary,

I am not sure I understand 100% your desired set-up, but if I grasped
it correctly, I think the problem you may found is the images would
only be local to the node that is exporting the NFS share. Otherwise I
think it will work as you expect.

Regards,

-Tino

--
Constantino Vázquez Blanco, MSc
Project Engineer
OpenNebula - The Open-Source Solution for Data Center Virtualization
www.OpenNebula.org | @tinova79 | @OpenNebula


On Fri, Jul 27, 2012 at 11:44 PM, Gary S. Cuozzo <gary at isgsoftware.net> wrote:
> Hi Users,
> I am running ONE 3.6 and would like to be able to run a combination of
> shared storage (via iSCSI) and local storage (to take advantage of local
> disk performance for certain applications).  My question is related to the
> local storage aspect.
>
> From what I've seen, I can use a local datastore and the ssh TM to
> accomplish local storage.  The drawback that I see is that I need 2x the
> amount of disk space because I need storage for the permanent image on the
> controller node, then storage on the local host for the running image when
> it is deployed.  A secondary issue for me is that the images have to be
> transferred between the datastore and the host machine, which will take some
> time with larger images.
>
> To get around the problem, I thought I could set the datastore up as a
> shared filesystem, except the sharing would actually be from the host
> machine to the controller machine via NFS.  Is there any particular
> reason(s) that would be a bad idea?  On the surface it seems like it should
> work just fine, but I'm somewhat new to ONE and want to be sure I'm not
> going down a bad path since I plan to do this with several host machines.
>
> Thanks in advance for any advice.
>
> gary
>
>
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