From owner-freebsd-stable Tue Jul 31 11:42:50 2001 Delivered-To: freebsd-stable@freebsd.org Received: from magrathea.epr.com (magrathea.epr.com [198.3.163.3]) by hub.freebsd.org (Postfix) with ESMTP id 01EFE37B401 for ; Tue, 31 Jul 2001 11:42:46 -0700 (PDT) (envelope-from jsatterfield@intertrust.com) Received: (from uucp@localhost) by magrathea.epr.com (8.9.3/8.7.3) id LAA09781 for ; Tue, 31 Jul 2001 11:42:45 -0700 (PDT) Received: from unknown(198.3.162.27) by magrathea.epr.com via smap (V5.5) id xma009730; Tue, 31 Jul 01 11:42:21 -0700 Received: from exchange.epr.com (exchange.epr.com [198.3.162.249]) by maguro.epr.com (8.9.3/8.9.3) with ESMTP id LAA24310 for ; Tue, 31 Jul 2001 11:42:13 -0700 (PDT) Received: by exchange.epr.com with Internet Mail Service (5.5.2653.19) id ; Tue, 31 Jul 2001 11:39:58 -0700 Message-ID: <720AE932C238D411B4D100C04F10DA6B0222BA6B@exchange.epr.com> From: James Satterfield To: stable@FreeBSD.ORG Subject: RE: PERC 3 Dell 2500 and FreeBSD 4.3 stable Date: Tue, 31 Jul 2001 11:39:55 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG # Begin rambling The Perc 3QC is an AMI Enterprise 1600 card. I've got two of them. They both suck. =) I've done a LOT of disk IO benchmarking with the Perc 3Di and 3QC cards in the last few months. Awful results. If anyone is interested, I could send them some of my findings (and a few things Dell has said about the performance). Basically, I ended up removing the QC cards, installing a few 2 channel ultra160 cards, and running software raid because the hardware solution was so poor. It was very nice of Dell to start including a branded version of Veritas Volume Manager as their array management solution. # End rambling James -----Original Message----- From: Mike Smith [mailto:msmith@FreeBSD.ORG] Sent: Tuesday, July 31, 2001 1:08 AM To: Kevin Oberman Cc: Tim Kellers; stable@FreeBSD.ORG Subject: Re: PERC 3 Dell 2500 and FreeBSD 4.3 stable > Here is a summary of PERC hardware from Mike Smith who did most (all) > of the driver work for them: > The PERC, PERC 2/SC, PERC 2/DC and PERC 3/D* are AMI designs. > > The PERC 2/Si, PERC 2/Di, PERC 3/Si and PERC 2/QC are Adaptec designs. > > "PERC" means "this is a Dell-branded RAID controller". > "2" and "3" refer to 40MHz vs 80MHz SCSI support. > "S" "D" and "Q" are single, dual and quad channel designations. > "i" means it's integrated onto the server motherboard. > "C" means it's an addin card. > "L" means it's the low-cost version. Just to amend this; the 3/DC is an AMI controller, but the 3/Di is an Adaptec design. Another way of looking at it is that if it's an 'i', or a QC, it's an Adaptec. Otherwise it's an AMI. Knowing Dell, though, this may change again without too much notice. 8( -- ... every activity meets with opposition, everyone who acts has his rivals and unfortunately opponents also. But not because people want to be opponents, rather because the tasks and relationships force people to take different points of view. [Dr. Fritz Todt] V I C T O R Y N O T V E N G E A N C E To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message