From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: One drive which perform frequent head unloads under Linux Date: Mon, 29 Sep 2008 17:44:49 +0900 Message-ID: <48E09581.8010504@kernel.org> References: <1222334079.13537.2.camel@frattaglia> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:33829 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751717AbYI2Iqi (ORCPT ); Mon, 29 Sep 2008 04:46:38 -0400 In-Reply-To: <1222334079.13537.2.camel@frattaglia> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Vincenzo Ciancia Cc: linux-ide@vger.kernel.org Vincenzo Ciancia wrote: > Hi, I own a toshiba m400 and I already had to replace a disk in less > than one year (luckily, it was covered by warranty). I noticed that > Load_Cycle_Count was indeed increasing. Using hdparm -B 255 fixes it, > but also 254 seems to fix it (and I guess it is better to have some > power management than none at all?). > > I am not subscribed to the list so if you need more information just ask > me. I followed instructions at > > http://ata.wiki.kernel.org/index.php/Known_issues#How_to_determine_whether_a_machine_has_this_problem I just updated the page. Can you please read the updated part (which is in bold) and post how much the load cycle count increases per hour without any adjustment? Thanks. -- tejun