On Fri, Mar 25, 2016 at 12:19 AM, Mykola Golub <mgolub@xxxxxxxxxxxx> wrote: > On Thu, Mar 24, 2016 at 03:38:25PM -0700, Gregory Farnum wrote: > >> Just to be clear, you know that you can use the same snapid for all >> the images, right? (...although not if you're trying to allow CGs >> across pools. Those will be a little harder.) > > I think not allowing CGs across pools would be annoying limitation for > users. If a VM has several volumes for different purposes (e.g. small > but fast volume for applicatin data, and large but slow one for > backups) it is logical to have different pools for those. This isn't impossible either. We do it with cache pools and backing pools sharing a set of snapids, for instance. But the default rules won't work, since a snapid is just a 64-bit counter and they're per-pool rather than cluster-global. -Greg -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
