Andi Abes wrote:
> On Wed, Apr 25, 2012 at 3:39 PM, Caitlin Bestler > <caitlin.best...@nexenta.com> wrote: >> andi.abes asked: >> >>> Would this also be applicable to the ephemeral instance storage? >> > >An ephemeral instance is essentially a non-persistent clone of a snapshot > >image. >> >that's an interesting perspective. But currently, those can be snapshotted and >made into new images (see [1]). >The approach you're describing appears to depend heavily on capabilities of >backend storage devices. > If snapshoting is only supported using these capabilities - would it mean > deprecating these capabilities? (or did you just not consider them?) Given that Nexenta makes an appliance that acts as a backend storage device, my having that perspective is not surprising. However, I think it is reasonable to expect that pseudo-device like qcow emulate the capabilities of the actual backend storage services. The definitions that are the consensus of the backend storage device vendors already encompass a variety of implementations, which the pseudo-devices could easily implement in software. _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
