On Wed, Jun 10, 2009 at 11:41:52AM -0700, Roy Sigurd Karlsbakk wrote: > Hi all > > I've been reading up a little about data deduplication, and have been > in search for an OSS filesystem with dedup without much luck. While > testing snapshots and so on in LVM, I started wondering if dedup would > be better off in LVM than in the filesystem. Would it be possible/ > efficient to add dedup to the LVM layer, or perhaps a layer above LVM? > This could make dedup work for all or most of filesystems. Make a hash > table with 4k (or whatever) blocks, make virtual blocks pointing to > the physical blocks and run a remapping/deduping job at night. If > written to, copy-on-write could be used to increase speed. > > Is this nonsense, or might it be an idea? > I like the idea. :-) Maybe it could be done at the LV layer. Ray _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
