From owner-freebsd-questions@FreeBSD.ORG  Tue Jan 23 15:10:36 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id D875A16A400
	for <freebsd-questions@freebsd.org>;
	Tue, 23 Jan 2007 15:10:36 +0000 (UTC)
	(envelope-from jerrymc@gizmo.acns.msu.edu)
Received: from gizmo.acns.msu.edu (gizmo.acns.msu.edu [35.8.1.43])
	by mx1.freebsd.org (Postfix) with ESMTP id A5C1713C4B8
	for <freebsd-questions@freebsd.org>;
	Tue, 23 Jan 2007 15:10:36 +0000 (UTC)
	(envelope-from jerrymc@gizmo.acns.msu.edu)
Received: from gizmo.acns.msu.edu (localhost [127.0.0.1])
	by gizmo.acns.msu.edu (8.13.6/8.13.6) with ESMTP id l0NF5JZt015465;
	Tue, 23 Jan 2007 10:05:20 -0500 (EST)
	(envelope-from jerrymc@gizmo.acns.msu.edu)
Received: (from jerrymc@localhost)
	by gizmo.acns.msu.edu (8.13.6/8.13.6/Submit) id l0NF5Jul015464;
	Tue, 23 Jan 2007 10:05:19 -0500 (EST) (envelope-from jerrymc)
Date: Tue, 23 Jan 2007 10:05:19 -0500
From: Jerry McAllister <jerrymc@msu.edu>
To: Damian Wiest <dwiest@vailsys.com>
Message-ID: <20070123150519.GA15419@gizmo.acns.msu.edu>
References: <539c60b90701161033v5e316ef4m19332bd6e86ab67b@mail.gmail.com>
	<20070123011659.GD22569@dfwdamian.vail>
	<20070123073506.GB6053@dfwdamian.vail>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20070123073506.GB6053@dfwdamian.vail>
User-Agent: Mutt/1.4.2.2i
Cc: Steve Franks <stevefranks@ieee.org>,
	FreeBSD Users Questions <freebsd-questions@freebsd.org>
Subject: Re: hardware mirrors recognized as individual disks in fbsd
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 23 Jan 2007 15:10:36 -0000

On Tue, Jan 23, 2007 at 01:35:06AM -0600, Damian Wiest wrote:

> On Mon, Jan 22, 2007 at 07:16:59PM -0600, Damian Wiest wrote:
> 
> [snip]
> 
> > Real hardware RAID chips/cards tend to be expensive, 
> > proprietary, don't require an OS driver and include a battery backup
> > system for data in the RAID cache should the system lose power.
> 
> I don't know what I was thinking, of course the hardware RAID systems
> require drivers.

Of course, what you meant to say was that they don't require an 
OS raid utility to zip the raid together.   They look like a 
single hardware device and the driver must just be for that device
sort of like any other device.

////jerry

> 
> -Damian
> _______________________________________________
> freebsd-questions@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
> To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org"