From owner-freebsd-hardware  Thu Apr 20 11:23:16 2000
Delivered-To: freebsd-hardware@freebsd.org
Received: from mass.cdrom.com (adsl-63-202-177-62.dsl.snfc21.pacbell.net [63.202.177.62])
	by hub.freebsd.org (Postfix) with ESMTP
	id 8EA1037B660; Thu, 20 Apr 2000 11:23:12 -0700 (PDT)
	(envelope-from msmith@mass.cdrom.com)
Received: from mass.cdrom.com (localhost [127.0.0.1])
	by mass.cdrom.com (8.9.3/8.9.3) with ESMTP id LAA01011;
	Thu, 20 Apr 2000 11:30:07 -0700 (PDT)
	(envelope-from msmith@mass.cdrom.com)
Message-Id: <200004201830.LAA01011@mass.cdrom.com>
X-Mailer: exmh version 2.1.1 10/15/1999
To: Jin Guojun (FTG staff) <jin@george.lbl.gov>
Cc: hardware@FreeBSD.ORG, questions@FreeBSD.ORG
Subject: Re: IDE RAID (Adaptec one) 
In-reply-to: Your message of "Thu, 20 Apr 2000 11:17:14 PDT."
             <200004201817.LAA01940@george.lbl.gov> 
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Date: Thu, 20 Apr 2000 11:30:07 -0700
From: Mike Smith <msmith@freebsd.org>
Sender: owner-freebsd-hardware@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.org

> I do not know Adaptec one, but I know 3ware has something similar.
> We asked them for an evaluation board (retail is about $270) and come with 
> linux driver source. It works quite well under linux. It can be configured
> as 2x2 stripe, 1x4 stripe (RAID1), and mirror (RAID0). The 2x2 stripe can
> have 32MBps I/O rate which is not bad at all.
> Four 45GB WDC IDE drives are $1000, plus a $270 IDE controller, you can
> get total 180GB with 32MBps I/O at $1300 which is half price of the same
> configuration for SCSI.

Note that this controller doesn't support RAID 5 or hotswap.

> The driver code is about 16K, but requires many linux header files.
> I do not have time to poke Linux syuff at this moment. If some one is
> interested in it, driver source can be download from www.3ware.com.

I have one in the lab, and am working on a driver.  It's next in the 
queue behind the ICP Vortex cards at the moment.

-- 
\\ Give a man a fish, and you feed him for a day. \\  Mike Smith
\\ Tell him he should learn how to fish himself,  \\  msmith@freebsd.org
\\ and he'll hate you for a lifetime.             \\  msmith@cdrom.com




To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hardware" in the body of the message