From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx11.extmail.prod.ext.phx2.redhat.com [10.5.110.16]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id p4M6gS7B016383 for ; Sun, 22 May 2011 02:42:28 -0400 Received: from ps536.phatservers.com (ps536.phatservers.com [216.17.105.202]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p4M6gRWS008159 for ; Sun, 22 May 2011 02:42:27 -0400 Received: from r74-192-17-33.bcstcmta01.clsttx.tl.dh.suddenlink.net ([74.192.17.33] helo=localhost) by ps536.phatservers.com with esmtpa (Exim 4.66) (envelope-from ) id 1QO2Mr-0001E9-AH for linux-lvm@redhat.com; Sat, 21 May 2011 23:42:25 -0700 Date: Sun, 22 May 2011 01:42:23 -0500 From: Ray Morris Message-ID: <20110522014223.335d5da6@bettercgi.com> In-Reply-To: <1306017503.3487.1454529429@webmail.messagingengine.com> References: <1306017503.3487.1454529429@webmail.messagingengine.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [linux-lvm] LVM - Combining different hard drives with different specs ? 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 Not a problem. If the drives have different performance, some files may have different performance, but that's actually nothing new because the outside of a disk platter is faster than the inner tracks. So whether you have one disk, two matched disks, or two mismatched disks you'll always have different areas with different performance. -- Ray Morris support@bettercgi.com Strongbox - The next generation in site security: http://www.bettercgi.com/strongbox/ Throttlebox - Intelligent Bandwidth Control http://www.bettercgi.com/throttlebox/ Strongbox / Throttlebox affiliate program: http://www.bettercgi.com/affiliates/user/register.php On Sat, 21 May 2011 15:38:23 -0700 "Lee Gold" wrote: > > Hi, > > I have a 100GB IDE HD that will fill up soon. I have a 1TB SATA drive > I want to add. I am using Ubuntu Server 10.04, I installed the > existing 100GB drive using LVM, only a single initial HD. I aim to > increase my storage capacity under the server's document > root /var/www... Before I get started hopefully asking intelligent > questions and giving the needed information to help you help me, I > wanted to ask this initial question: > > These two drives are different, they surely have different > performance. Will this be a problem? If it was RAID I think matching > drives are needed. I just want to add storage capacity with > acceptable performance for a local in-house server. > > Thanks, > > Lee G. > > >