From owner-freebsd-questions@FreeBSD.ORG Sun Oct 4 11:47:08 2009 Return-Path: Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BC32B106568D for ; Sun, 4 Oct 2009 11:47:08 +0000 (UTC) (envelope-from idmc_vivr@intgdev.com) Received: from omr17.networksolutionsemail.com (omr17.networksolutionsemail.com [205.178.146.67]) by mx1.freebsd.org (Postfix) with ESMTP id 790D78FC1C for ; Sun, 4 Oct 2009 11:47:08 +0000 (UTC) Received: from mail.networksolutionsemail.com (ns-omr17.mgt.hosting.dc2.netsol.com [10.49.6.80]) by omr17.networksolutionsemail.com (8.13.6/8.13.6) with SMTP id n94BTt0i029246 for ; Sun, 4 Oct 2009 07:29:55 -0400 Received: (qmail 23775 invoked by uid 78); 4 Oct 2009 11:29:55 -0000 Received: from unknown (HELO webmail4) (205.178.146.50) by ns-omr17.lb.hosting.dc2.netsol.com with SMTP; 4 Oct 2009 11:29:55 -0000 Received: from 75.88.118.131 (idmc_vivr@intgdev.com [75.88.118.131]) by webmail4 (Netsol 11.2.30) with WEBMAIL id 25867; Sun, 04 Oct 2009 11:29:55 +0000 From: "V.I.Victor" To: "Oliver Fromme" , freebsd-questions@FreeBSD.ORG, idmc_vivr@intgdev.com Importance: Normal Sensitivity: Normal Message-ID: X-Mailer: Network Solutions Webmail, Build 11.2.30 X-Originating-IP: [75.88.118.131] X-Forwarded-For: [(null)] Date: Sun, 04 Oct 2009 11:29:55 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Mailman-Approved-At: Sun, 04 Oct 2009 12:02:46 +0000 Cc: Subject: Re: Every 12-hrs -- "ad0: TIMEOUT - WRITE DMA" 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: Sun, 04 Oct 2009 11:47:08 -0000 [...] >First of all: The disk is *not* dying. "SMART" won't reveal anything. >The behaviour is perfectly normal for IBM-DJNA-3* type disks. > >When those disks are used in continuous operation (24/7), they >will go into automatic maintenance mode after 6 days. This is >kind of a short self-test and recalibration to ensure reliable >continous operation. It will be repeated after another 6 days >ad infinitum. > It's been over 3.5 years since my original post -- imagine my surprise! The drive's still running (24/7) and still reporting the same retries. Be= cause of the pattern of the retries, I never really thought that the driv= e was bad. But, until now, I never knew why it was happening. Thanks *very* much for the info!