From owner-freebsd-questions@FreeBSD.ORG Fri Jan 6 15:00:56 2012 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 D94F51065676 for ; Fri, 6 Jan 2012 15:00:56 +0000 (UTC) (envelope-from b.smeelen@ose.nl) Received: from mail.ose.nl (mail.ose.nl [212.178.134.164]) by mx1.freebsd.org (Postfix) with ESMTP id 6AA1C8FC0C for ; Fri, 6 Jan 2012 15:00:56 +0000 (UTC) X-Footer: b3NlLm5s Received: from localhost ([127.0.0.1]) by mail.ose.nl (using TLSv1/SSLv3 with cipher AES256-SHA (256 bits)) for freebsd-questions@freebsd.org; Fri, 6 Jan 2012 16:00:54 +0100 Message-ID: <4F070CA6.5050803@ose.nl> Date: Fri, 06 Jan 2012 16:00:54 +0100 From: Bas Smeelen User-Agent: Mozilla/5.0 (X11; Linux i686; rv:9.0) Gecko/20111220 Thunderbird/9.0 MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <20120105144204.d419cca4.web@3dresearch.com> <6ABAC46B-6193-47B6-B173-94D060E01EC4@mac.com> <4F069A44.7020600@ose.nl> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: Apparently conflicting smartctl output 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: Fri, 06 Jan 2012 15:00:56 -0000 On 01/06/2012 03:39 PM, Warren Block wrote: > On Fri, 6 Jan 2012, Bas Smeelen wrote: > >> I have had this with a drive and multiple read errors would not remap the >> sector. >> With write errors the sector would be remapped. This was a new Samsung >> laptop drive though, not a Western Digital. > > That's standard. Sectors are only remapped to spares on a write error. > >> To get the sector remapped I had to fully write the drive and it was ok >> after that. > > Just writing to the sector should be enough. Of course, when one sector > goes bad, others often follow. I just hope it does not develop more bad sectors. >From what I read on the "Bad block HOWTO for smartmontools" on sourceforge it's not trivial to just write to that sector and also it would destroy the filesystem? So I just copied a big iso file several times untill the sector got remapped, the disk was almost full then. This is a brand new disk, maybe I should return it under warranty then, though it did not develop more bad sectors? Disclaimer: http://www.ose.nl/email