openstack team mailing list archive

[Sébastien Han <han.sebastien@xxxxxxxxx>]

Hi,

I'm sure if I understand everything but let me give a try.
By default, the compute nodes store virtual instances in
/var/lib/nova/instances/. Of course it's part of the compute node local FS.
If you want to store this directory somewhere else, use a DFS like
GlusterFS or even Ceph or a SAN.
Also don't forget that you *can't *use Swift for storing your virtual
instances.

Hope it is what you asked for.

Cheers.

On Thu, Jun 28, 2012 at 1:48 AM, udit agarwal <fzdudit@xxxxxxxxx> wrote:

> Hi,
>  I have set up Openstack in my lab with everything except storage nodes on
> one system and two other systems with each of them acting themselves as a
> storage node. I have used swift as the backend for glance so all the
> uploaded images are stored on these storage nodes. But when I run a virtual
> machine using nova, it reads the image from the storage nodes and it seems
> to me that it uses the local filesystem for storing instances and after I
> shutoff my virtual machine, it writes back to the storage nodes. But the
> thing that I want to implement is that if I copy some file from my local
> system to that virtual machine, it should automatically get stored on my
> storage nodes rather than occupying space on my local filesystem.
>
>  Can anybody help me with this??
>  Thanks in advance.
>
> --Udit Agarwal
>
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