From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx02.extmail.prod.ext.phx2.redhat.com [10.5.110.26]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id tBLCUlRQ019390 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Mon, 21 Dec 2015 07:30:48 -0500 Received: from mail-qg0-f46.google.com (mail-qg0-f46.google.com [209.85.192.46]) by mx1.redhat.com (Postfix) with ESMTPS id 5F9DF8E395 for ; Mon, 21 Dec 2015 12:30:47 +0000 (UTC) Received: by mail-qg0-f46.google.com with SMTP id c96so83130914qgd.3 for ; Mon, 21 Dec 2015 04:30:47 -0800 (PST) Received: from biodora.local ([70.45.27.18]) by smtp.gmail.com with ESMTPSA id x136sm1796703qka.0.2015.12.21.04.30.45 for (version=TLSv1/SSLv3 cipher=OTHER); Mon, 21 Dec 2015 04:30:46 -0800 (PST) Message-ID: <5677F0E5.5050101@gmail.com> Date: Mon, 21 Dec 2015 08:30:29 -0400 From: =?UTF-8?B?Sm9yZ2UgRsOhYnJlZ2Fz?= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] Extend VG - Expand LUN vs New Disk 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: LVM Mailingliste Hi everyone, Are there any major differences between expanding an existing LUN (already striped & mirrored on storage-array) and use pvresize & "lvextend -r ..." vs adding a new disk to your VG when you need to expand an existing filesystem? At work we do the latter and almost everyone believes expanding an existing LUN is not a safe operation. Is there really a preferred method? Or is it just a matter of personal preference? Thanks! Jorge