From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Peterson Subject: tracking parity mismatches to a failing disk Date: Wed, 09 May 2012 15:16:08 -0400 Message-ID: <4FAAC278.6080303@duke.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I'm trying to identify the source of a non-zero mismatch_cnt on a six-disk RAID6 md array. I think I've identified it as /dev/sdf since that is the only device with a non-zero value in /sys/block/md0/md/dev-sd*/errors. Is that the right way to track parity mismatches back to a disk? OS is CentOS 5.8 -> mdadm 2.6.9 Thanks, Michael