From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Peter Sangas" Subject: RE: mismatch_cnt > 0 during initial sync? Date: Fri, 16 Jun 2017 10:28:50 -0700 Message-ID: <003a01d2e6c6$054e8230$0feb8690$@wnsdev.com> References: <9A8A3C34-EED0-42FF-B631-7AD1D6EAF9A2@stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Language: en-us Sender: linux-raid-owner@vger.kernel.org To: 'Stephane Thiell' , linux-raid@vger.kernel.org List-Id: linux-raid.ids > -----Original Message----- > From: Stephane Thiell [mailto:sthiell@stanford.edu] > Subject: Re: mismatch_cnt > 0 during initial sync? > > I just did some tests and this seems normal if one of the raid disk previously has > some non-zero data. Perhaps there should be a note about that in md(4) or > elsewhere? (sorry if I missed it) Hi Stephane, I also thought mismatch_cnt should = 0 after a sync. I am wondering if you ran the repair command? echo repair >> /sys/block/mdX/md/sync_action Thanks, Pete