On Wed, Jan 23, 2013 at 10:33:49AM -0800, Joe Julian wrote: > > On 01/23/2013 01:34 AM, Shishir Gowda wrote: > >One of the possible scenarios is someone taking a lvm snap of the backend. > As an aside, lvm snapshots are good for one-off temporary saves, but > are completely useless as an interval snapshot. Each one takes up a > ton of ram and increase boot-up times very significantly. I would > recommend focusing on btrfs for any snapshotting backend. The new LVM/device-mapper thin-provisioning should remedy quite these problems. I have not yet tried this myself, but it looks promising. - http://fedoraproject.org/wiki/Features/ThinProvisioning - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=Documentation/device-mapper/thin-provisioning.txt