From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: MD/RAID: what's wrong with sector 1953519935? Date: Wed, 26 Aug 2009 20:07:13 -0400 Message-ID: <4A95CE31.80404@rtr.ca> References: <004e01ca25e4$c11a54e0$434efea0$@ca> <9cfb6af689a7010df166fdebb1ef516b.squirrel@neil.brown.name> <4A948A82.4080901@redhat.com> <4A94905F.7050705@redhat.com> <005101ca25f4$09006830$1b013890$@ca> <4A94A0E6.4020401@redhat.com> <005401ca25ff$9ac91cc0$d05b5640$@ca> <4A950FA6.4020408@redhat.com> <92cb16daad8278b0aa98125b9e1d057a@localhost> <4A95573A.6090404@redhat.com> <1571f45804875514762f60c0097171e6@localhost> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:53156 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753508AbZH0AHF (ORCPT ); Wed, 26 Aug 2009 20:07:05 -0400 In-Reply-To: <1571f45804875514762f60c0097171e6@localhost> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Andrei Tanas Cc: Ric Wheeler , NeilBrown , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Andrei Tanas wrote: > On Wed, 26 Aug 2009 11:39:38 -0400, Ric Wheeler > wrote: >> On 08/26/2009 10:46 AM, Andrei Tanas wrote: >>> On Wed, 26 Aug 2009 06:34:14 -0400, Ric Wheeler >>> wrote: >>>> On 08/25/2009 11:45 PM, Andrei Tanas wrote: >>>>>>>> I would suggest that Andrei might try to write and clear the IO >>>>>> error >>>>>>>> at that >>>>>>>> offset. You can use Mark Lord's hdparm to clear a specific sector .. > [90318.370625] end_request: I/O error, dev sdb, sector 1953519935 .. I suggest you try this: hdparm --read-sector 1953519935 /dev/sdb If that succeeds, then the sector is good at the drive. But *If* it fails, then you could check the syslog to ensure that it didn't fail for some weird reason, and then *fix* it: hdparm --write-sector 1953519935 /dev/sdb This is very different from how 'dd' does writes. Cheers