From owner-freebsd-questions@FreeBSD.ORG Sat Feb 25 00:05:53 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4FC3B16A420 for ; Sat, 25 Feb 2006 00:05:53 +0000 (GMT) (envelope-from mike@sentex.net) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [205.211.164.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id C693543D46 for ; Sat, 25 Feb 2006 00:05:52 +0000 (GMT) (envelope-from mike@sentex.net) Received: from BLUELAPIS.sentex.ca (cage.simianscience.com [64.7.134.1]) by smarthost2.sentex.ca (8.13.4/8.13.4) with SMTP id k1P05oKZ039818; Fri, 24 Feb 2006 19:05:50 -0500 (EST) (envelope-from mike@sentex.net) From: Mike Tancsa To: Ashley Moran Date: Fri, 24 Feb 2006 19:06:01 -0500 Message-ID: References: <200602241216.00547.work@ashleymoran.me.uk> In-Reply-To: <200602241216.00547.work@ashleymoran.me.uk> X-Mailer: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 2.51 on 205.211.164.50 Cc: freebsd-questions@freebsd.org Subject: Re: Areca ARC-1120 vs Adeptec 2820 for RAID 6 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: Sat, 25 Feb 2006 00:05:53 -0000 On Fri, 24 Feb 2006 12:16:00 +0000, in sentex.lists.freebsd.questions you wrote: > >One server supplier says customer's he's supplie with ARC boards were = unhappy=20 >with them, but didn't give any specific reasons. Does anyone have any=20 >experience with either of these on FBSD? > >There's a long comparison of the three cards at=20 >http://www.tomshardware.com/2006/01/02/safer_6_for_raid_controllers/ . = The=20 >Areca board canes the others performance-wise but I want to know if it = will=20 >be stable for the next however many years. I have been using them in a few boxes and they certainly are quite fast under RELENG_6. I have some running RAID5 and RAID10 have they really good disk IO. Prior to running ARECA cards I used exclusively 3wares. However, their performance was just not there until their SX cards came out. They are much closer in performance to the ARECA and I think they are stable now as well, but they dont have PCI-e versions of the card which I am looking for more and more. I was told that is coming soon now. On FreeBSD, the drives show up as a SCSI device da0 at arcmsr0 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-3 device=20 da0: 166.666MB/s transfers (83.333MHz, offset 32, 16bit), Tagged Queueing Enabled da0: 228881MB (468749312 512 byte sectors: 255H 63S/T 29178C) In short, I would recommend the card if you need speed under FreeBSD. ---Mike -------------------------------------------------------- Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 mike@sentex.net, (http://www.tancsa.com)