From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx15.extmail.prod.ext.phx2.redhat.com [10.5.110.20]) by int-mx01.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id qAE8pU37022190 for ; Wed, 14 Nov 2012 03:51:30 -0500 Received: from mail-pb0-f46.google.com (mail-pb0-f46.google.com [209.85.160.46]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id qAE8pTC8029124 for ; Wed, 14 Nov 2012 03:51:30 -0500 Received: by mail-pb0-f46.google.com with SMTP id wy7so225323pbc.33 for ; Wed, 14 Nov 2012 00:51:29 -0800 (PST) Date: Wed, 14 Nov 2012 16:51:47 +0800 From: majianpeng Mime-Version: 1.0 Message-ID: <201211141651437145651@gmail.com> Content-Transfer-Encoding: 8bit Subject: [linux-lvm] LVM and Raid5 alignment Reply-To: majianpeng , 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 Hi all, In this thread:http://www.redhat.com/archives/linux-lvm/2009-September/msg00090.html, it talked about lvm and raid5 alignment. As it said, when created pv, it thought the alignment.So the first lv must be aligned with stripe.But the second,third lv(specifically for linear)? I'm used latest lvm2 to test and also found this problem. I think we be add parameter like "lv-alignment" when creating lv to avoiding this problem. Thanks! Jianpeng