From owner-freebsd-questions@FreeBSD.ORG Fri Sep 5 02:41:08 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 0E82116A4BF for ; Fri, 5 Sep 2003 02:41:08 -0700 (PDT) Received: from asarian-host.net (mail.asarian-host.net [194.109.160.70]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8688643FFB for ; Fri, 5 Sep 2003 02:41:05 -0700 (PDT) (envelope-from admin@asarian-host.net) Comments: To protect the identity of the sender, certain header fields are either not shown, or masked. Anonymous email accounts can be requested by filling in the appropriate form at: https://asarian-host.net/cgi-bin/signup.cgi Received: (from root@localhost) by mail.asarian-host.net (8.12.9/8.12.9) id h859f3Hd006323 for questions@freebsd.org; Fri, 5 Sep 2003 11:41:03 +0200 (CEST) (envelope-from admin@asarian-host.net) From: Mark Message-Id: <200309050940.H859EIDV006281@asarian-host.net> Date: Fri, 05 Sep 2003 09:41:02 GMT X-Authenticated-Sender: admin@asarian-host.net X-Trace: 3cnrKOnlV6T6L6GuIOW9WEpkOM0HQ31M6b54mhfPojgRwALpNJUYX+JjO+NJzHrZtC20Oc8RdT3zPXJ06XkFuQ== X-Complaints-To: abuse@asarian-host.net X-Abuse-Info: Please be sure to forward a copy of ALL headers X-Abuse-Info: Otherwise we are unable to process your complaint Organization: Asarian-host To: "Ruben de Groot" , "jesse reynolds" References: <20030903162614.GB38375@ei.bzerk.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Auth: Asarian-host PGP signature iQEVAwUAP1haLzFqW1BleBN9AQFOqAf9HJ89auXTA9VszWXFyH1ilIm/HwY8yV/B 8Zk/FRBpaAxwvoZTzioDXRi6BHfvWgOleJqgsgBvhUM+e86dM2mbV+7xEW3Fkknp 2qt4dmGV6sEF8KN16m8G4QOSDGjIw+fH3wb/u1QzNF2YJCgTgxwBpKlLzX3JwdZy zcj8yhPNxrfGUaggzu8HPV6vPVA5M/GVo1+mYViTvGJN7bGp6FCGEMAX8cEEzDAA 6VqxFOu5U3Ka6ZEnkepGi2UGX7McDthESv7+M35FzRUamA7RbVbaR0XY0P/9lfI1 LNUdfHx3gqzTUUQgVdIghyNXd1QlQuANvlcXXAUx3qAdNivMaznWzg== =bDxq cc: questions@freebsd.org Subject: Re: RAID1 is DEGRADED, but which disk is faulty? 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, 05 Sep 2003 09:41:08 -0000 ----- Original Message ----- From: "jesse reynolds" To: "Ruben de Groot" Cc: Sent: Friday, September 05, 2003 8:08 AM Subject: Re: RAID1 is DEGRADED, but which disk is faulty? > Is it safe to shut it down and see what the Promise firmware > is saying? Or will i then lose the ability to tell which disk is > good and which has problems? I use an ASUS A7V333 board, with the onboard Promise PDC 20276 RAID controller (ATA133). Last summer I had the exact problem as you: ar0: ATA RAID1 subdisks: ad4 ad6 status: DEGRADED As the BIOS does a scan on the array at startup, going into the setup, it was immediately clear which drive was failing; and I could just rebuild from the BIOS (after putting in a new disk). There is also a "manual" test you could try. Simply open up your casing, and feel which drive is cold. :) Because after the array was degraded, ad6, in my case, was turned off. FreeBSD, btw, was able to boot off the degraded array as well. And, I mean, why not even? That is the whole purpose of RAID1. The warning messages kinda look scary, and make you feel your system is on the verge of collapse. But in reality, you just have a system running on one hard disk, like millions of other computers in the world. :) - Mark