Which version of OpenStack are you using? When you launch your image are you using "Boot from image" or "Boot from image (creates a new volume)" The former copies the image out of glance onto the local storage. The latter should be copy-on-write using ceph rbd. On Wed 08 Jan 2014 02:08:08 PM EST, Gautam Saxena wrote: > When booting an image from Openstack in which CEPH is the back-end for > both volumes and images, I'm noticing that it takes about ~10 minutes > during the "spawning" phase -- I believe Openstack is making a fully > copy of the 30 GB Windows image. Shouldn't it be a "copy-on-write" > image and therefore take only a few seconds to spawn? (The other > reason I think it's copying the whole 30 GB is that I monitored ceph > using "ceph -w" and I saw the data volume size increase.) > > I've configured OpenStack to use CEPH. (It's virtually identical to > the documentation, except that the glance api is version 1.0 and I've > not configured CEPH backup service.) _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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