From owner-freebsd-scsi@FreeBSD.ORG Wed Jul 23 08:52:33 2003 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CABAA37B401; Wed, 23 Jul 2003 08:52:33 -0700 (PDT) Received: from axl.seasidesoftware.co.za (axl.seasidesoftware.co.za [196.31.7.201]) by mx1.FreeBSD.org (Postfix) with ESMTP id B788143FAF; Wed, 23 Jul 2003 08:52:32 -0700 (PDT) (envelope-from sheldonh@starjuice.net) Received: from sheldonh by axl.seasidesoftware.co.za with local (Exim 4.20) id 19fLuo-00013a-Pc; Wed, 23 Jul 2003 17:52:30 +0200 Date: Wed, 23 Jul 2003 17:52:30 +0200 From: Sheldon Hearn To: Scott Long Message-ID: <20030723155230.GG792@starjuice.net> Mail-Followup-To: Scott Long , freebsd-scsi@freebsd.org References: <20030723084510.GC32528@starjuice.net> <3F1EA458.3020106@freebsd.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3F1EA458.3020106@freebsd.org> User-Agent: Mutt/1.5.4i Sender: Sheldon Hearn cc: freebsd-scsi@freebsd.org Subject: Re: Can Adaptec AIC-7902 do RAID-5? X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Jul 2003 15:52:34 -0000 On (2003/07/23 09:06), Scott Long wrote: > A 7902 by itself is _just_ a scsi chip. Any RAID functionality comes > either from software drivers or extra hardware[1]. Adaptec has two > product lines involving the 7902 chip and RAID. The 'HostRAID' line > is just a standard 7902 combined with software RAID drivers for levels > 0, 1, and 10, and a BIOS that supports booting off of these levels. > The 2200S and 2120S cards are hardware RAID and can do 0, 1, 5, 10, and > 50. Great Scott! ;-) Thanks, Sheldon.