From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Subject: Re: Huge values of mismatch_cnt on RAID 6 arrays under Fedora 18 Date: Mon, 28 Jan 2013 07:39:52 +0100 Message-ID: <20130128063952.E3BD7258787@gemini.denx.de> References: <20130127192656.634892005AD@gemini.denx.de> <5105DD72.6080909@fnarfbargle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Return-path: In-reply-to: <5105DD72.6080909@fnarfbargle.com> Sender: linux-raid-owner@vger.kernel.org To: Brad Campbell Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Dear Brad Campbell, In message <5105DD72.6080909@fnarfbargle.com> you wrote: > > Massive mismatch counts are indicative of an insidious problem further > down the storage stack. Check your drivers, cards, cables and PSU. That's why I'm asking. The hardware has not been changed at all, and has been running reliably for many months even years. No such problem has been observed ever before, but now it happens at the first check operation after switching to Fedora 18, simultaneous on all systems. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de Being schizophrenic is better than living alone.