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 i57IKd002048 for ; Mon, 7 Jun 2004 14:20:39 -0400 Received: from admin.theuseful.com (admin.theuseful.com [208.48.182.14]) by mx3.redhat.com (8.12.10/8.12.10) with ESMTP id i57IKYXn004555 for ; Mon, 7 Jun 2004 14:20:34 -0400 Received: from [192.168.1.95] (adsl-065-013-046-003.sip.mia.bellsouth.net [65.13.46.3]) by admin.theuseful.com (Postfix) with ESMTP id A073D150F7 for ; Mon, 7 Jun 2004 14:20:27 -0400 (EDT) Message-ID: <40C4B1E5.8040801@staff.theuseful.com> Date: Mon, 07 Jun 2004 14:20:21 -0400 From: Yaroslav Klyukin MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] LVM snapshot sizes. 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: linux-lvm@redhat.com I have created an LVM logical volume of the size arount 60G and formatted it with reiserfs. After that I put MySQL database onto this partition and made it a replicating slave. Using this configuration I took several LVM snapshots, 1G each. It did not take long for these snapshots to overflow. So here is the question: Why would it take so fast to overflow an LVM snapshot? In other words, what are the parameters, which affect snapshot fillups? Is it possible, that journaling filesystem can contribute to the size of changing data on the logical volume, and would LVM2 be more efficient? Thank you! -- Systems Administrator, NiuTech. Cellular: (561) 843-1552 AIM: infiniteparticle