[Rdo-list] Creating nova instance without backing image

Lars Kellogg-Stedman lars at redhat.com
Wed May 21 18:44:22 UTC 2014

On Wed, May 21, 2014 at 01:42:14PM -0400, Daniel Speichert wrote:
> However, if we upload a big image (e.g. migrating bare hardware system
> to the cloud) that is only used by one instance, the image becomes the
> backing file stored locally on the compute node. Here, the compute node
> hit disk space limit because we expect all the data to reside on Ceph.
> Is there any way to tell Nova to not use backing image for an instance?

I don't know the answer to that question...but since you're already
using Ceph, couldn't you simply put your instance storage on Ceph (or
some other remote/cluster filesystem) as well?  This would still mean
that for "single use" images you're using twice the space, but it
would remove the space limitations of the local filesystem.

Lars Kellogg-Stedman <lars at redhat.com> | larsks @ irc
Cloud Engineering / OpenStack          | "   "  @ twitter

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 819 bytes
Desc: not available
URL: <http://lists.rdoproject.org/pipermail/dev/attachments/20140521/093395c3/attachment.sig>

More information about the dev mailing list