From owner-freebsd-stable@FreeBSD.ORG Fri Jan 25 21:05:32 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 20BD916A46B for ; Fri, 25 Jan 2008 21:05:32 +0000 (UTC) (envelope-from tom.hurst@clara.net) Received: from spork.qfe3.net (spork.qfe3.net [212.13.207.101]) by mx1.freebsd.org (Postfix) with ESMTP id D74F013C442 for ; Fri, 25 Jan 2008 21:05:31 +0000 (UTC) (envelope-from tom.hurst@clara.net) Received: from [81.104.123.28] (helo=voi.aagh.net) by spork.qfe3.net with esmtp (Exim 4.66 (FreeBSD)) (envelope-from ) id 1JIVjr-000Mmv-Ki; Fri, 25 Jan 2008 21:05:27 +0000 Received: from freaky by voi.aagh.net with local (Exim 4.69 (FreeBSD)) (envelope-from ) id 1JIVjr-000Cpg-AQ; Fri, 25 Jan 2008 21:05:27 +0000 Date: Fri, 25 Jan 2008 21:05:27 +0000 From: Thomas Hurst To: Chuck Swiger Message-ID: <20080125210527.GA40754@voi.aagh.net> Mail-Followup-To: Chuck Swiger , Joe Peterson , freebsd-stable@freebsd.org References: <479A0731.6020405@skyrush.com> <20080125162940.GA38494@eos.sc1.parodius.com> <479A3764.6050800@skyrush.com> <3803988D-8D18-4E89-92EA-19BF62FD2395@mac.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3803988D-8D18-4E89-92EA-19BF62FD2395@mac.com> Organization: Not much. User-Agent: Mutt/1.5.17 (2007-11-01) Sender: Thomas Hurst Cc: Joe Peterson , freebsd-stable@freebsd.org Subject: Re: "ad0: TIMEOUT - WRITE_DMA" type errors with 7.0-RC1 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Jan 2008 21:05:32 -0000 * Chuck Swiger (cswiger@mac.com) wrote: > On Jan 25, 2008, at 11:24 AM, Joe Peterson wrote: >> ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED >> WHEN_FAILED RAW_VALUE >> 1 Raw_Read_Error_Rate 0x000f 114 071 006 Pre-fail Always >> - 82422948 > [ ... ] >> >> 7 Seek_Error_Rate 0x000f 084 060 030 Pre-fail Always >> - 286126605 > [ ... ] >> 195 Hardware_ECC_Recovered 0x001a 063 046 000 Old_age Always >> - 166181300 > > These numbers are quite worrysome-- they should be zero or nearly so in a > healthy drive. No, these are perfectly reasonable for a Seagate. I have about 12 7200.X's and all show the same sort of behavior. If they're nearly zero it's probably a sign your manufacturer isn't actually counting them (marketroids hate accurate SMART readings). Try graphing them as counters; with an idle disk you'll see periodic sawtooth patterns as the heads crawl from one side of the disk to the other. -- Thomas 'Freaky' Hurst http://hur.st/