From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from agk.fab.redhat.com (agk.fab.redhat.com [10.33.0.19]) by pobox.surrey.redhat.com (8.12.11.20060308/8.12.11) with ESMTP id l3NIw3sD005679 for ; Mon, 23 Apr 2007 19:58:03 +0100 Received: from agk by agk.fab.redhat.com with local (Exim 4.34) id 1Hg3jf-0000it-40 for linux-lvm@redhat.com; Mon, 23 Apr 2007 19:58:03 +0100 Date: Mon, 23 Apr 2007 19:58:03 +0100 From: Alasdair G Kergon Subject: Re: [linux-lvm] multiple levels of snapshots Message-ID: <20070423185803.GM26983@agk.fab.redhat.com> References: Mime-Version: 1.0 Content-Disposition: inline In-Reply-To: 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" Content-Transfer-Encoding: 7bit To: LVM general discussion and development On Mon, Apr 23, 2007 at 02:54:37PM -0400, Boris Ostrovsky wrote: > From what I can see, LVM tools don't allow creating multiple levels of > snapshots (i.e. creating a > snapshot of a snapshot). Is this a fundamental property of LVM/device > mapper architecture > or is it that this feature simply hasn't made it to LVM (yet)? You could indeed set it up outside LVM using dmsetup. Alasdair -- agk@redhat.com