From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alain Williams Subject: Re: High IO Wait with RAID 1 Date: Fri, 13 Mar 2009 10:17:07 +0000 Message-ID: <20090313101707.GF29989@mint.phcomp.co.uk> References: <7d86ddb90903121646q485ad12y90824a4c3fcc2dfd@mail.gmail.com> <20090313004802.GB29989@mint.phcomp.co.uk> <7d86ddb90903122021y5f4f0868na3f1944f87f77f4a@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <7d86ddb90903122021y5f4f0868na3f1944f87f77f4a@mail.gmail.com> Sender: linux-raid-owner@vger.kernel.org To: Ryan Wagoner Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Mar 12, 2009 at 10:21:28PM -0500, Ryan Wagoner wrote: > I'm glad I'm not the only one experiencing the issue. Luckily the > issues on both my systems aren't as bad. I don't have any errors > showing in /var/log/messages on either system. I've been trying to > track down this issue for about a year now. I just recently my the > connection with RAID 1 and mdadm when copying data on the second > system. Did you have the problem straight from install, or perhaps when a new kernel started being used ? My system worked well for some months, there was no kernel update and it started to go wrong a couple of weeks ago. I also see errors when I run 'badblocks' -- which makes it smell of a hardware issue, but the disks were tested, on return, by the hardware supplier and they did not find any problem with them. Given that you are not seeing anything in /var/log/messages make me think that I do have some other problem -- perhaps in addition to what you have. -- Alain Williams Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer. +44 (0) 787 668 0256 http://www.phcomp.co.uk/ Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php Past chairman of UKUUG: http://www.ukuug.org/ #include