From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Samuel Subject: Re: Data De-duplication Date: Sun, 14 Dec 2008 23:25:21 +1100 Message-ID: <200812142325.24073.chris@csamuel.org> References: <1228862899.8130.1.camel@mattos-laptop> <1228943437.7571.1.camel@mattos-laptop> <20081210211903.GA29002@bludgeon.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <20081210211903.GA29002@bludgeon.org> List-ID: On Thu, 11 Dec 2008 8:19:03 am Ray Van Dolson wrote: > I'm not sure why this hasn't caught on, but as soon as a solid and fast > implementation of it exists in the Linux world I really think it can > catch on for VM datastores.... I know we've hollered at Sun as to why > they haven't rolled it out for ZFS yet! Might NetApp have patented the technique ? Would be a similar situation to the issues [1] that the KSM work [2] fell into with trying to prevent duplication of pages. cheers, Chris [1] - http://lwn.net/Articles/309155/ [2] - http://lwn.net/Articles/306704/ -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC This email may come with a PGP signature as a file. Do not panic. For more info see: http://en.wikipedia.org/wiki/OpenPGP