From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: SATA timeouts on two disks Date: Fri, 25 Jan 2008 08:19:14 +0900 Message-ID: <47991CF2.2000403@gmail.com> References: <3afbacad0801121656u7318de7l57ba5064da259f3f@mail.gmail.com> <18313.65287.290482.369023@harpo.it.uu.se> <3afbacad0801190822v19be782er3d48cbc94293e262@mail.gmail.com> <47944E2E.2070300@gmail.com> <3afbacad0801240931w4587d79cj6a84f36320573a9a@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from rv-out-0910.google.com ([209.85.198.185]:32914 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753657AbYAXXTV (ORCPT ); Thu, 24 Jan 2008 18:19:21 -0500 Received: by rv-out-0910.google.com with SMTP id k20so439673rvb.1 for ; Thu, 24 Jan 2008 15:19:20 -0800 (PST) In-Reply-To: <3afbacad0801240931w4587d79cj6a84f36320573a9a@mail.gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jim MacBaine Cc: Mikael Pettersson , linux-ide@vger.kernel.org Hello, Jim MacBaine wrote: > A co-worker, to whom I explained my problem, asked me whether I had > properly grounded my drives. In fact I had not: The drives resided in > a vibration-absorbing frame through which their exterior had no > electrical contact with the grounded case. Since I grounded the drives > two days ago, I got no new errors. So maybe my problem is solved. Hmmm... Grounding..... Interesting. > If not, I will happily try out your suggestion. Would you be so kind > to explain in a few words, what connecting one drive to a second > (supposedly good) PSU will show? It's just a good way to isolate problems. For example, the motherboard could be doing something strange on the 12v rail and the PSU could be too sensitive causing the whole rail to fluctuate slightly leading to occasional transmission errors. SATA links are the first to be affected by those kinds of electrical problems. > (Is this still on-topic on this list?) Yeah, sure. -- tejun