From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christophe Varoqui Subject: Re: understanding of multipathing and speed Date: Mon, 05 Jul 2010 20:58:30 +0200 Message-ID: <1278356310.30539.606.camel@localhost> References: <201007052037.39362.bart.coninckx@telenet.be> Reply-To: christophe.varoqui@opensvc.com, device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <201007052037.39362.bart.coninckx@telenet.be> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: device-mapper development List-Id: dm-devel.ids On lun., 2010-07-05 at 20:37 +0200, Bart Coninckx wrote: > Hi, > > I would like to run my ideas by this list about multipathing and the results > as far as storage speed is concerned. > > I'm using multipathing to two iSCSI targets pointing to the same storage. It > was my understanding that this provides for network path redundancy (and it > does, I tested this) but also for added speed. > I did some tests with Bonnie++ however while both paths were active and one > path was down and the results are basically the same. > > Am I assuming wrong things? Or have I configured things wrong? > can you also include a 'multipath -l' output and sketch the hba/switch/controller physical connections ? thanks, -- Christophe Varoqui OpenSVC