From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx3.redhat.com (mx3.redhat.com [172.16.48.32]) by int-mx1.corp.redhat.com (8.13.1/8.13.1) with ESMTP id m53Khqox030138 for ; Tue, 3 Jun 2008 16:43:52 -0400 Received: from scidubsmtp01.stercomm.com (scidubsmtp01.stercomm.com [209.95.244.35]) by mx3.redhat.com (8.13.8/8.13.8) with ESMTP id m53Khfk6013625 for ; Tue, 3 Jun 2008 16:43:42 -0400 Received: from IWDUBCORMSG002.sci.local (iwdubcormsg002.sci.local [10.105.142.32]) by boamail1.stercomm.com (Postfix) with ESMTP id CA66633C55 for ; Tue, 3 Jun 2008 16:43:39 -0400 (EDT) Subject: Re: [linux-lvm] ANNOUNCE: an experimental implementation of snapshot merging From: Chris Cox In-Reply-To: References: Content-Transfer-Encoding: 7bit Date: Tue, 03 Jun 2008 15:43:39 -0500 Message-Id: <1212525819.19122.16.camel@behemoth.csg.stercomm.com> Mime-Version: 1.0 Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii" To: LVM general discussion and development On Tue, 2008-06-03 at 15:26 -0400, Mikulas Patocka wrote: > Hi > > Here I release the first experimental implementation of snapshot merging. > Merging allows you to copy data in snapshot back to the origin device. > Once merging starts, it runs on background. When the merging finishes (you > see "0%" with "lvs" command), you should remove the merging snapshot with > lvremove command. I would think this would be VERY hard to do since both the "origin" and "snapshot" change (file deletes, etc). Do you have a set of rules you use for the merge?