From owner-freebsd-questions@FreeBSD.ORG Tue Jan 16 23:51:12 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3BF9316A417 for ; Tue, 16 Jan 2007 23:51:12 +0000 (UTC) (envelope-from Russell.Wood@rac.com.au) Received: from maserati.rac.com.au (maserati.rac.com.au [61.88.37.66]) by mx1.freebsd.org (Postfix) with ESMTP id 7713C13C471 for ; Tue, 16 Jan 2007 23:51:11 +0000 (UTC) (envelope-from Russell.Wood@rac.com.au) Received: from mazda.rac.com.au ([172.16.5.50]) by audi.rac.com.au with Microsoft SMTPSVC(6.0.3790.1830); Wed, 17 Jan 2007 08:21:06 +0900 Received: from mercury.rac.com.au ([172.16.5.42]) by mazda.rac.com.au with Microsoft SMTPSVC(6.0.3790.1830); Wed, 17 Jan 2007 08:21:06 +0900 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.2826 Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Wed, 17 Jan 2007 08:21:05 +0900 Message-ID: Importance: normal Priority: normal X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Very Poor Raid Card Performance thread-index: Acc5uy6+hYTEqFXoTvqM8uF/SKRblwACVCYA From: "Wood, Russell" To: "Ivan Voras" , X-OriginalArrivalTime: 16 Jan 2007 23:21:06.0304 (UTC) FILETIME=[FF4E4000:01C739C4] Cc: Subject: RE: Very Poor Raid Card Performance X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Jan 2007 23:51:12 -0000 > -----Original Message----- > From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd- > questions@freebsd.org] On Behalf Of Ivan Voras > Sent: Wednesday, 17 January 2007 7:04 AM > To: freebsd-questions@freebsd.org > Subject: Re: Very Poor Raid Card Performance >=20 > Steven Lowry wrote: >=20 > > The main problem is my HD performance, it is approx 6x slower than in > > windows XP, hopefully there is a solution. I have an LSI Megaraid 8x > with > > four drives in a raid 5 configuration, in windows I was getting upto > 60MB/s > > transfer rates but in FBSD I am getting upto 9MB/s. I followed the I have an LSI MegaRaid with three drives at RAID 5: works a god-damn-treat. I don't know what my throughput is on RAID 5 but RAID 0 was fast (70MB/s+). Were you doing these tests a few hours after initializing the array, by any chance? If so, then the poor performance could be because the array was `in build' while you were using it, and therefore you'd get very poor performance. Regards, Russell Wood DISCLAIMER: Disclaimer. This e-mail is private and confidential. If you are not the = intended recipient, please advise us by return e-mail immediately, and = delete the e-mail and any attachments without using or disclosing the = contents in any way. The views expressed in this e-mail are those of the = author, and do not represent those of this company unless this is = clearly indicated. You should scan this e-mail and any attachments for = viruses. This company accepts no liability for any direct or indirect = damage or loss resulting from the use of any attachments to this e-mail.