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) 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 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