From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan-Frode Myklebust Subject: Re: Data Deduplication with the help of an online filesystem check Date: Mon, 4 May 2009 20:06:51 +0200 Message-ID: References: <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> <2a31deca0905040916s43b60cf3xdc56d365b5c1d233@mail.gmail.com> <20090504162421.GC13777@cip.informatik.uni-erlangen.de> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 To: linux-btrfs@vger.kernel.org Return-path: List-ID: On 2009-05-04, Thomas Glanzmann wrote: > >> As far as I understand, VMware already ships this "gold image" featu= re >> (as they call it) for Windows environments and claims it to be very >> efficient. > > they call it ,,thin or shallow clones'' "thin or shallow clones" sounds more like sparse images. I believe "lin= ked clones" is the word for running multiple virtual machines off a single gold ima= ge. Ref, the "VMware View Composer" section of: http://www.vmware.com/products/view/whatsincluded.html =09 > Looking at the website content, it also revealed that VMware will hav= e a > similiar feature for their workhorse ,,esx server'' in the upcoming > release, however my point still stands. Ship out a service pack for > windows and you 1.5 Gbyte of modified data that is not deduped.=20 "All desktops that are linked to a master image can be patched or updat= ed simply by updating the master image, without affecting users=E2=80=99 = settings, data or applications." -jf -- 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