From owner-freebsd-performance@FreeBSD.ORG Sat Dec 11 01:08:54 2004 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7893F16A4CE for ; Sat, 11 Dec 2004 01:08:54 +0000 (GMT) Received: from dragon.nuxi.com (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D58743D2F for ; Sat, 11 Dec 2004 01:08:54 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.nuxi.com (obrien@localhost [127.0.0.1]) by dragon.nuxi.com (8.13.1/8.13.1) with ESMTP id iBB18nnJ052257; Fri, 10 Dec 2004 17:08:49 -0800 (PST) (envelope-from obrien@dragon.nuxi.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.13.1/8.13.1/Submit) id iBB18nLT052249; Fri, 10 Dec 2004 17:08:49 -0800 (PST) (envelope-from obrien) Date: Fri, 10 Dec 2004 17:08:49 -0800 From: "David O'Brien" To: Jon Noack Message-ID: <20041211010849.GE50516@dragon.nuxi.com> References: <17418.69.53.57.66.1102618255.squirrel@69.53.57.66> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <17418.69.53.57.66.1102618255.squirrel@69.53.57.66> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 cc: freebsd-performance@freebsd.org cc: Bill Anderson Subject: Re: 2120S poor performance X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-performance@freebsd.org List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 11 Dec 2004 01:08:54 -0000 On Thu, Dec 09, 2004 at 12:50:55PM -0600, Jon Noack wrote: > Bill Anderson wrote: > > I've got a 3x72g RAID5 array with U320 disks on an Adaptec 2120S > > controller under Freebsd 4.10. I'm getting about 25MB/s for sequential .. > > What's the cheapest controller that still gives reasonable performance? > > (If you could give a couple different ones, with their associated > > performance (under FreeBSD), or tell me where to find such information, > > that would be great) > > The asr driver is in need of a lot of attention. .. > There are many quality, (relatively) cheap controllers out there, but if > you're looking to stick with Adaptec get a 2130S. The 2130S uses the aac > driver, which is quite well tuned and maintained by Scott Long. The Adaptec SCSI RAID 2120S is not an I2O(asr) controller -- it is an aac(4) controller. The 'out of market' controller mentioned in this thread is the work horse 5400S. -- -- David (obrien@FreeBSD.org)