From owner-freebsd-questions@FreeBSD.ORG Fri Oct 10 16:07:12 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 035B216A4B3 for ; Fri, 10 Oct 2003 16:07:12 -0700 (PDT) Received: from mail6.bluewin.ch (mail6.bluewin.ch [195.186.4.229]) by mx1.FreeBSD.org (Postfix) with ESMTP id E987A43F85 for ; Fri, 10 Oct 2003 16:07:10 -0700 (PDT) (envelope-from raphael@computer-rental.ch) Received: from computer-rental.ch (81.62.170.71) by mail6.bluewin.ch (Bluewin AG 7.0.020) id 3F57071200443565 for freebsd-questions@freebsd.org; Fri, 10 Oct 2003 23:07:09 +0000 Date: Sat, 11 Oct 2003 01:04:33 +0200 Mime-Version: 1.0 (Apple Message framework v552) Content-Type: text/plain; charset=US-ASCII; format=flowed From: =?ISO-8859-1?Q?Rapha=EBl_Marmier?= To: freebsd-questions@freebsd.org Content-Transfer-Encoding: 7bit Message-Id: <1C73C231-FB76-11D7-A70A-000393D67E4A@computer-rental.ch> X-Mailer: Apple Mail (2.552) Subject: a problem of hard disks ordering... X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Oct 2003 23:07:12 -0000 I have recently installed FreeBSD 4.8 on a small Compaq Proliant server with a built-in Adaptec SCSI3 controller and a SmartArray 532 raid controller. The root device is on the volume provided by the raid controller, which is accessible under /dev/da#, like the built-in scsi. I like to add a scsi drive on the built-in scsi to use for storing "worthless" data such as /usr/src, /usr/ports and /usr/obj, so it's fast and doesn't hog the production volume. My problem is that when I add a drive to the built-in controller, it gets mapped to /dev/da0, pushing the SmartArray's volume to /dev/da1 !!! I need this server to be able to survive a disk failure, IMHO, should include the ability to reboot properly. However, with such a setup, the failure of any non-raid disk would prevent the os from booting (wrong fstab), which somehow defeats the purpose of having raid in the first place. This is a dns and mail server, so it MUST be able to come up again, whatever the reason of the shutdown. Is there a way to force the order the da driver maps drive? thanks in advance Raphael