From owner-freebsd-current@FreeBSD.ORG Thu Oct 18 09:09:23 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0114316A41A for ; Thu, 18 Oct 2007 09:09:22 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: from blah.sun-fish.com (blah.sun-fish.com [217.18.249.150]) by mx1.freebsd.org (Postfix) with ESMTP id A564E13C459 for ; Thu, 18 Oct 2007 09:09:22 +0000 (UTC) (envelope-from stefan.lambrev@moneybookers.com) Received: by blah.sun-fish.com (Postfix, from userid 1002) id 02CAE1B10EE6; Thu, 18 Oct 2007 11:09:20 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on blah.cmotd.com X-Spam-Level: X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham version=3.2.3 Received: from hater.haters.org (hater.cmotd.com [192.168.3.125]) by blah.sun-fish.com (Postfix) with ESMTP id 5AE9F1B10EA4 for ; Thu, 18 Oct 2007 11:09:18 +0200 (CEST) Message-ID: <471722BE.20107@moneybookers.com> Date: Thu, 18 Oct 2007 12:09:18 +0300 From: Stefan Lambrev User-Agent: Thunderbird 2.0.0.6 (X11/20070918) MIME-Version: 1.0 To: freebsd-current@freebsd.org References: <47161A42.2050306@moneybookers.com> <471636E4.90807@thekeelecentre.com> <47163ACC.1080807@moneybookers.com> <47163B9B.4010901@thekeelecentre.com> <471715AD.3080102@moneybookers.com> <47171750.8050906@thekeelecentre.com> <20071018085812.GA8481@eos.sc1.parodius.com> In-Reply-To: <20071018085812.GA8481@eos.sc1.parodius.com> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV 0.91.2/4545/Wed Oct 17 23:05:57 2007 on blah.cmotd.com X-Virus-Status: Clean Subject: Re: Very slow HP 8 Internal Port SAS HBA with RAID 0, 1 on Hot Plug SAS/SATA Models (LSI SAS1068 - mpt) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Oct 2007 09:09:23 -0000 Hi, Jeremy Chadwick wrote: > On Thu, Oct 18, 2007 at 09:20:32AM +0100, Richard Tector wrote: > >> Stefan Lambrev wrote: >> >>> -skip- >> 70MB/s from desktop drives is pretty respectabloe, IMHO. >> > > In a RAID 1 configuration, I would say 70MByte/sec read is more than > decent. That's about what I get from an individual drive on a built-in > nVidia nForce 4 SATAII controller. Here's a sequential read from a disk > on that controller, using dd and gstat; sometimes it hits 78MB. > > ad10: 476940MB at ata5-master SATA300 > > L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name > 1 571 571 72850 1.4 0 0 0.0 82.0| ad10 > > You might also want to verify that the disks are actually running > at SATA300 speeds (which won't necessarily gain you a lot over SATA150, > but worth turning on assuming it's compatible with your controller). > Seagate drives, for example, have a little jumper on them that limits > the interface to SATA150; remove it. > > da0: Fixed Direct Access SCSI-2 device da0: 300.000MB/s transfers Yes it is detected as SATA300, and the raid reports HDDs the same way. May be I have wrong impression that mirror should increase read speed almost twice compared to single disk, but I forget that bonnie++ was run as single thread. May be if I start it with concurrency=2 then I'll see the real performance of the mirror ? Or should I move to the thread to performance@ :) -- Best Wishes, Stefan Lambrev ICQ# 24134177