From owner-freebsd-questions@FreeBSD.ORG Tue Jun 10 14:33:56 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3E87E10657C6 for ; Tue, 10 Jun 2008 14:33:56 +0000 (UTC) (envelope-from IwrTech@iwr.ru.ac.za) Received: from a.mail.ru.ac.za (a.mail.ru.ac.za [IPv6:2001:4200:1010::25:1]) by mx1.freebsd.org (Postfix) with ESMTP id ECEA18FC1D for ; Tue, 10 Jun 2008 14:33:54 +0000 (UTC) (envelope-from IwrTech@iwr.ru.ac.za) Received: from iwr.ru.ac.za ([146.231.64.249]:52615) by a.mail.ru.ac.za with esmtp (Exim 4.68 (FreeBSD)) (envelope-from ) id 1K64v0-0003pC-Cb for freebsd-questions@freebsd.org; Tue, 10 Jun 2008 16:33:50 +0200 Received: from iwr61.iwr.ru.ac.za ([146.231.64.161]) by iwr.ru.ac.za with esmtp (Exim 4.69 (FreeBSD)) (envelope-from ) id 1K64v0-0002DH-BS for freebsd-questions@freebsd.org; Tue, 10 Jun 2008 16:33:50 +0200 From: "DA Forsyth" Organization: IWR To: freebsd-questions@freebsd.org Date: Tue, 10 Jun 2008 16:33:47 +0200 MIME-Version: 1.0 Message-ID: <484EACEB.7169.43FE1258@iwrtech.iwr.ru.ac.za> Priority: normal X-mailer: Pegasus Mail for Windows (4.41) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body X-Virus-Scanned: a.mail.ru.ac.za (146.231.129.33) Subject: xRAID disks.... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: iwrTech@iwr.ru.ac.za List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 Jun 2008 14:33:56 -0000 Hiya I've had this for a while now and have done many searches for info but have not yet come up with the right question, hence have not got the answer. My main server has an Adaptec IDE raid card. A couple of years ago I took disks that had been a mirror pair on that card out of the server and put them into my test server, not as a raid pair since the test server has no raid hardware. During boot I see this ad0: 19092MB at ata0-master UDMA66 ad1: 76319MB at ata0-slave UDMA66 ad2: 76319MB at ata1-master UDMA66 ad3: 19092MB at ata1-slave UDMA66 ar0: 76319MB status: BROKEN ar0: disk0 DOWN no device found for this subdisk ar0: disk1 DOWN no device found for this subdisk The pair of ex-RAID disks are ad1 and ad2 and obviously are no longer a raid pair, yet 'something' is telling the ar() driver to try and pair them and failing because there is no raid hardware in that box. Now I am reconfiguring that machine a bit and would like to fix this, both on these existing drives and on the 320MB drive I have just removed from a RAID1 pair and will be putting into the box instead of ad3 (the other 320GB from the pair is in a USB enclosure for other purposes and has not shown any signs of knowing it was in a raid pair) I suspect the raidinfo is stored on the disk somewhere and a suitable 'dd' command can erase it. but where and how? thanks for your help -- DA Fo rsyth Network Supervisor Principal Technical Officer -- Institute for Water Research http://www.ru.ac.za/institutes/iwr/