From owner-freebsd-scsi@FreeBSD.ORG Thu Aug 30 20:10:52 2007 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B1AAB16A418 for ; Thu, 30 Aug 2007 20:10:52 +0000 (UTC) (envelope-from ulf@alameda.net) Received: from mail.alameda.net (mail.alameda.net [194.55.105.10]) by mx1.freebsd.org (Postfix) with ESMTP id 8B24613C46A for ; Thu, 30 Aug 2007 20:10:52 +0000 (UTC) (envelope-from ulf@alameda.net) Received: by mail.alameda.net (Postfix, from userid 1000) id AAA7C33D33; Thu, 30 Aug 2007 13:10:37 -0700 (PDT) Date: Thu, 30 Aug 2007 13:10:37 -0700 From: Ulf Zimmermann To: Eric Anderson Message-ID: <20070830201037.GR824@evil.alameda.net> References: <71d0ebb0708291245g79d2141fx73cc8a6e76875944@mail.gmail.com> <46D5E17F.3070403@samsco.org> <71d0ebb0708291416v17351c65u7ccc1b7bbe0271d2@mail.gmail.com> <46D5E5B1.207@samsco.org> <71d0ebb0708291506i49649a60l8006deafb20891ac@mail.gmail.com> <46D63710.1020103@freebsd.org> <46D64020.3000503@samsco.org> <46D6C8C2.3000504@freebsd.org> <46D6CA91.3080707@samsco.org> <46D6CBA2.8000703@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <46D6CBA2.8000703@freebsd.org> User-Agent: Mutt/1.4.2.2i Organization: Alameda Networks, Inc. X-Operating-System: FreeBSD 5.3-STABLE X-ANI-MailScanner-Information: Please contact the ISP for more information X-ANI-MailScanner: Found to be clean X-ANI-MailScanner-From: ulf@alameda.net Cc: FREEBSD - SCSI - LIST Subject: Re: performance with LSI SAS 1064 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: ulf@Alameda.net List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Aug 2007 20:10:52 -0000 On Thu, Aug 30, 2007 at 08:52:34AM -0500, Eric Anderson wrote: > >Ah, I didn't know that Seagate made 15k drives in the 2.5" form factor, > >I was expecting just 7200 or 10k. > > They are the only ones to my knowledge. These little drives are *FAST*. > > Eric HP brands the Seagate ones, there are 2.5" SAS 36GB and 72GB, both in 10K and 15K and then 146GB in 10K currently (at least what HP sells). I have been seeing on Raid 5 and Raid 6 ADG via HP P400 and P800 controllers as much as 180MB/sec during large writes on 4 and 6 drive arrays. I was impressed when I first got my initial servers with SAS. But under Linux I have seen lately some issues I need to check more. Wished I could run more FreeBSD though :-/ -- Regards, Ulf. --------------------------------------------------------------------- Ulf Zimmermann, 1525 Pacific Ave., Alameda, CA-94501, #: 510-865-0204 You can find my resume at: http://www.Alameda.net/~ulf/resume.html