Open Stack

Hi ,

Can nova boot several servers from just one cinder volume?

Or Can I boot several servers from a bootable volume without making
serveral volumes of same image?

I don't know whether the copy-on-write(cow) block image is supported by
openstack now,
which I means a base image volume can be created, then creating several
cow images from the base image
volume to boot servers.

If this is already supported, What's the usage?

Thanks for any help~

-- 
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Jackie
Best Regards