From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx2.redhat.com (mx2.redhat.com [10.255.15.25]) by int-mx2.corp.redhat.com (8.13.1/8.13.1) with ESMTP id l3F7rhU4005434 for ; Sun, 15 Apr 2007 03:53:43 -0400 Received: from extmail.dtnet.de (extmail.dtnet.de [87.193.12.202]) by mx2.redhat.com (8.13.1/8.13.1) with ESMTP id l3F7rf7j004787 for ; Sun, 15 Apr 2007 03:53:41 -0400 Message-ID: <4621D4CF.8080806@dtnet.de> Date: Sun, 15 Apr 2007 09:31:27 +0200 From: Daniel Schwager MIME-Version: 1.0 Subject: Re: [linux-lvm] Limitation: Snapshots does not work in cluster enviroment ? References: <4620D7E3.9090609@dtnet.de> <20070414145250.GI26983@agk.fab.redhat.com> <4620E73F.50100@dtnet.de> <20070414152407.GK26983@agk.fab.redhat.com> <4620F6F1.8020906@dtnet.de> <20070415041138.GL26983@agk.fab.redhat.com> In-Reply-To: <20070415041138.GL26983@agk.fab.redhat.com> Content-Transfer-Encoding: 7bit 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"; format="flowed" To: LVM general discussion and development Alasdair G Kergon schrieb: > On Sat, Apr 14, 2007 at 05:44:49PM +0200, Daniel Schwager wrote: > >> So, thank you very much for your detailed explanation. Would >> an implementaion change on "dmsetup" also solve the "Limitation of 32 >> snapshots" ? >> > > Yes - that is a in-use per-machine limitation, and you'd only > be using one snapshot on each machine. > > Do RH or the community want in integrate the changes in dmsetup - is there maybe a timeline for this ? My task is to take n (e.g. n=5) identical snapshot(snap1-5.LV) from a xen-image (base.LV) and run 5 Xen-VM's (based on snap1-5.LV) on 5 different XEN-Server (phy.HW). If this could not done with CLVM2, i have to change the concept to use GFS/OCFS2. regards Danny