On 01/08/2014 11:07 AM, 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.)
You need to enable glance's v2 api. v1 doesn't expose the image location
so cinder can't clone it.
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