From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from magic.merlins.org ([209.81.13.136]:43991 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754107AbaKRPfv (ORCPT ); Tue, 18 Nov 2014 10:35:51 -0500 Date: Tue, 18 Nov 2014 07:35:26 -0800 From: Marc MERLIN To: Brendan Hide Cc: "linux-btrfs@vger.kernel.org" Subject: Re: scrub implies failing drive - smartctl blissfully unaware Message-ID: <20141118153526.GS20972@merlins.org> References: <546AF572.2020101@swiftspirit.co.za> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <546AF572.2020101@swiftspirit.co.za> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Tue, Nov 18, 2014 at 09:29:54AM +0200, Brendan Hide wrote: > Hey, guys > > See further below extracted output from a daily scrub showing csum > errors on sdb, part of a raid1 btrfs. Looking back, it has been getting > errors like this for a few days now. > > The disk is patently unreliable but smartctl's output implies there are > no issues. Is this somehow standard faire for S.M.A.R.T. output? Try running hdrecover on your drive, it'll scan all your blocks and try to rewrite the ones that are failing, if any: http://hdrecover.sourceforge.net/ Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/