From owner-freebsd-questions@FreeBSD.ORG Wed Sep 28 11:20:34 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 18E6616A41F for ; Wed, 28 Sep 2005 11:20:34 +0000 (GMT) (envelope-from m@obmail.net) Received: from stewie.obfuscated.net (stewie.obfuscated.net [66.118.188.125]) by mx1.FreeBSD.org (Postfix) with ESMTP id C674E43D4C for ; Wed, 28 Sep 2005 11:20:31 +0000 (GMT) (envelope-from m@obmail.net) Received: from [192.168.1.102] (214-3.26-24.tampabay.res.rr.com [24.26.3.214]) (using TLSv1 with cipher RC4-SHA (128/128 bits)) (No client certificate requested) by stewie.obfuscated.net (Postfix) with ESMTP id 3690F60DF; Wed, 28 Sep 2005 07:20:31 -0400 (EDT) In-Reply-To: <17210.31132.778408.755267@szamoca.krvarr.bc.ca> References: <17210.31132.778408.755267@szamoca.krvarr.bc.ca> Mime-Version: 1.0 (Apple Message framework v734) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <4FD27FD3-A0CB-47DB-BB33-945B5BF5A3BE@obmail.net> Content-Transfer-Encoding: 7bit From: Michael Conlen Date: Wed, 28 Sep 2005 07:20:31 -0400 To: Sandy Rutherford X-Mailer: Apple Mail (2.734) Cc: FreeBSD Mailing List Subject: Re: Disk inconsistency X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Sep 2005 11:20:34 -0000 On Sep 28, 2005, at 7:08 AM, Sandy Rutherford wrote: > A month ago I had one drive in a raid 1 volume "intermittently fail". > I started seeing occasional (as in only once or twice per week) read > errors in the logs for the volume in question; however, the drive > didn't fail catastrophically enough for me to identify which one of > the 2 drives was bad. After this happened a few times, I started > seeing exactly the behaviour that you described above. At the time, I > conjectured that the mirrored disks had become inconsistent. > Fortunately, I was able to identify the bad drive soon after. > After replacing the drive and rebuilding the redundant data, the > system has been perfectly stable. > > You didn't state your raid setup (hardware or software?). In my case, > I am using hardware raid (a Mylex extremeRAID 1100 controller) with > SCSI disks. I'm using a IBM FAStT-100 disk array with 8 drives in a RAID-10 (all hardware RAID on the disk array). I think my only option is to pull an incremental backup and rebuild the file system. Thanks for the info. -- Michael Conlen