Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933276AbXFRWB2 (ORCPT ); Mon, 18 Jun 2007 18:01:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1762481AbXFRWBS (ORCPT ); Mon, 18 Jun 2007 18:01:18 -0400 Received: from mx1.redhat.com ([66.187.233.31]:36422 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1762055AbXFRWBR (ORCPT ); Mon, 18 Jun 2007 18:01:17 -0400 Message-ID: <46770091.2080109@redhat.com> Date: Mon, 18 Jun 2007 16:00:49 -0600 From: Brendan Conoboy User-Agent: Thunderbird 1.5.0.12 (X11/20070530) MIME-Version: 1.0 To: david@lang.hm CC: Wakko Warner , Lennart Sorensen , Neil Brown , linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org Subject: Re: limits on raid References: <18035.23867.576212.859440@notabene.brown> <4676BEC2.7090809@redhat.com> <20070618180327.GP10008@csclub.uwaterloo.ca> <20070618183324.GL10006@csclub.uwaterloo.ca> <4676D8DE.3050903@redhat.com> <20070618214633.GA15468@animx.eu.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 606 Lines: 15 david@lang.hm wrote: > yes, I'm useing promise drive shelves, I have them configured to export > the 15 drives as 15 LUNs on a single ID. Well, that would account for it. Your bus is very, very saturated. If all your drives are active, you can't get more than ~7MB/s per disk under perfect conditions. -- Brendan Conoboy / Red Hat, Inc. / blc@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/