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 (8.11.6/8.11.6) with ESMTP id jAEDpFV12163 for ; Mon, 14 Nov 2005 08:51:15 -0500 Received: from xproxy.gmail.com (xproxy.gmail.com [66.249.82.194]) by mx3.redhat.com (8.13.1/8.13.1) with ESMTP id jAEDp4k4016078 for ; Mon, 14 Nov 2005 08:51:09 -0500 Received: by xproxy.gmail.com with SMTP id r21so2364896wxc for ; Mon, 14 Nov 2005 05:50:59 -0800 (PST) Message-ID: <64c763540511140550t4de2bbc8scdc58e4d38717a15@mail.gmail.com> Date: Mon, 14 Nov 2005 19:20:59 +0530 From: Block Device MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit Subject: [linux-lvm] Standard Linux Framework for Snapshot Notification 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: linux-lvm@redhat.com Hi, I want to know whether Linux provides any standard interface for volume managers etc so that applications can register themselves to be notified when a snapshot needs to be taken. Something similar to VSS on Windows. If there isnt any such interface how is consistency guaranteed for application data when a snapshot is taken ? eg. How does one take (consistent) snapshots of database instances w/o first quiescing them ? If this not the right place to ask this, can someone point me in the right direction ? Thanks & Regards BD.