From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Tripathy Subject: Raid Checks Date: Sun, 03 Apr 2011 09:31:32 +0100 Message-ID: <4D983064.30808@abpni.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi Everyone, I'm running CentOS 5.5 which a stock version of mdadm. I have 2 physical disks in a RAID1 setup. Each disk has 4 md partitions on it. I'm experiencing the issues associated with the raid-check script every Sunday morning, where whatever is happening, a re-sync happens. Doing a little reading around Google, I see that this is probably caused by the mismatch_cnt being non-zero, which apparently is normal for RAID1 devices. According to this bug: https://bugzilla.redhat.com/show_bug.cgi?id=566828 someone has made a patch for RedHat so that mismatch_cnt isn't checked on RAID1 setups. However, since I don't use RedHat, and I don't really want to compile mdadm from scratch, is there a workaround for this? I don't want to just disable the raid-check script, as I think it does some other important checks which are useful for RAID1. Any help would be appreciated Thanks