From owner-freebsd-hackers@FreeBSD.ORG  Tue Apr  8 23:31:11 2003
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 9A84F37B401
	for <hackers@FreeBSD.ORG>; Tue,  8 Apr 2003 23:31:11 -0700 (PDT)
Received: from spider.deepcore.dk
	(cpe.atm2-0-56339.0x50c6aa0a.abnxx2.customer.tele.dk [80.198.170.10])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0B07F43F93
	for <hackers@FreeBSD.ORG>; Tue,  8 Apr 2003 23:31:10 -0700 (PDT)
	(envelope-from sos@spider.deepcore.dk)
Received: (from sos@localhost)
	by spider.deepcore.dk (8.12.8p1/8.12.8) id h396V5ud029116;
	Wed, 9 Apr 2003 08:31:05 +0200 (CEST)
	(envelope-from sos)
From: Soeren Schmidt <sos@spider.deepcore.dk>
Message-Id: <200304090631.h396V5ud029116@spider.deepcore.dk>
In-Reply-To: <000501c2fe5c$13247d40$0300000a@slugabed.org>
To: Sean Hamilton <sh@bel.bc.ca>
Date: Wed, 9 Apr 2003 08:31:05 +0200 (CEST)
X-Mailer: ELM [version 2.4ME+ PL98b (25)]
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset=ISO-8859-1
cc: hackers@FreeBSD.ORG
Subject: Re: Undeletable ATA RAID
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 09 Apr 2003 06:31:11 -0000

It seems Sean Hamilton wrote:
> I recently added two disks to a FreeBSD system and created an ATA array with
> them. Upon rebooting, the existing array (formerly ar0) became ar1, and the
> new array was now ar0. Accordingly, the system didn't boot. I have since
> removed the second disk from the new array, and now the array ar0 (the new
> array) is undeletable. It complains the second disk doesn't exist. When I
> attempt to delete it, it simply returns upon reboot, and the system is again
> unbootable. It even survived a zeroing of the first disk!
> This is on 5.0-RELEASE.

What kind of controller do you have since that is vital for how
ATA RAID's are setup ?

-Søren