On Wed, Oct 15, 2008 at 03:39:16PM +0200, Avi Kivity wrote: > Andi Kleen wrote: > >Ray Van Dolson <rayvd@xxxxxxxxxxxx> writes: > > > > > >>I recall their being a thread here a number of months back regarding > >>data-deduplication support for bttfs. > >> > >>Did anyone end up picking that up and giving a go at it? Block level > >>data dedup would be *awesome* in a Linux filesystem. It does wonders > >>for storing virtual machines w/ NetApp and WAFL, and even ZFS doesn't > >>have this feature yet (although I've read discussions on them looking > >>to add it). > >> > > > >There are some patches to do in QEMU's cow format for KVM. That's > >user level only. > > > > And thus, doesn't work for sharing between different images, especially > at runtime. It would work if the images are all based once on a reference image, won't it? I would imagine that's the common situation for installing lots of VMs. > I'd really, really [any number of reallies], really like to > see btrfs deduplication. Sure it would be useful for a couple of things. -Andi -- ak@xxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
