From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Kuzmin Subject: Re: Data Deduplication with the help of an online filesystem check Date: Mon, 4 May 2009 20:16:20 +0400 Message-ID: <2a31deca0905040916s43b60cf3xdc56d365b5c1d233@mail.gmail.com> References: <20090427033331.GC17677@cip.informatik.uni-erlangen.de> <20090428155900.GA1722@cip.informatik.uni-erlangen.de> <49F728F6.6030307@wpkg.org> <20090428173251.GB7217@cip.informatik.uni-erlangen.de> <49F73FC9.3070607@partiallystapled.com> <49FEFBE6.40209@redhat.com> <49FEFE27.5090804@wpkg.org> <49FEFF9A.8060803@redhat.com> <20090504151518.GA13777@cip.informatik.uni-erlangen.de> <49FF11EE.2060404@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: Thomas Glanzmann , Tomasz Chmielewski , Michael Tharp , Chris Mason , linux-btrfs@vger.kernel.org To: Ric Wheeler Return-path: In-Reply-To: <49FF11EE.2060404@redhat.com> List-ID: On Mon, May 4, 2009 at 8:03 PM, Ric Wheeler wrote= : > Thomas Glanzmann wrote: > > I think that Chris already mentioned that you can (for virt OS images= ) also > imagine using copy on write snapshots (of something that is mostly re= ad-only > like the OS system partitions). =A0Make 50 copy-on-write snapshots of= "/" > (excluding /home) and you have an effective compression of 98% until = someone > rudely starts writing at least :-) > As far as I understand, VMware already ships this "gold image" feature (as they call it) for Windows environments and claims it to be very efficient. Regards, Andrey > ric > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs= " in > the body of a message to majordomo@vger.kernel.org > More majordomo info at =A0http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html