From owner-freebsd-hardware@FreeBSD.ORG Tue Mar 23 22:21:45 2010 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A28DF1065670 for ; Tue, 23 Mar 2010 22:21:45 +0000 (UTC) (envelope-from michiel@boland.org) Received: from smtp-vbr16.xs4all.nl (smtp-vbr16.xs4all.nl [194.109.24.36]) by mx1.freebsd.org (Postfix) with ESMTP id 40D048FC1C for ; Tue, 23 Mar 2010 22:21:44 +0000 (UTC) Received: from charlemagne.boland.org (91-43-215.ftth.xms.internl.net [82.215.43.91]) (authenticated bits=0) by smtp-vbr16.xs4all.nl (8.13.8/8.13.8) with ESMTP id o2NM5fds025913 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 23 Mar 2010 23:05:42 +0100 (CET) (envelope-from michiel@boland.org) Message-ID: <4BA93B35.9090304@boland.org> Date: Tue, 23 Mar 2010 23:05:41 +0100 From: Michiel Boland User-Agent: Thunderbird 2.0.0.24 (X11/20100323) MIME-Version: 1.0 To: freebsd-hardware@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by XS4ALL Virus Scanner Subject: intellipark leads to high load cycle count X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Mar 2010 22:21:45 -0000 Hi. I have one of those new green WD HDs with Intellipark, that is, they like to park their heads every 8 seconds. As a result the load cycle count grows at an alarming rate. (If I understand correctly this number should not exceed about 300k or so.) # dmesg | grep ad4 ad4: 953869MB at ata2-master UDMA100 GEOM: ad4: partition 1 does not start on a track boundary. GEOM: ad4: partition 1 does not end on a track boundary. GEOM: ad4s1: geometry does not match label (32h,32s != 16h,63s). Trying to mount root from ufs:/dev/ad4s1a # smartctl -a /dev/ad4 | grep Load 193 Load_Cycle_Count 0x0032 188 188 000 Old_age Always - 38319 Is there any way to turn off or increase the 8-second timeout? Or do I have to bin the disk and use something better? I don't want to boot into DOS, windows or any of that stuff. I also tried ataidle to no effect. Cheers Michiel