From mboxrd@z Thu Jan 1 00:00:00 1970 From: Larkin Lowrey Subject: Check not actually reading drives Date: Wed, 28 Mar 2012 18:19:11 -0500 Message-ID: <4F739C6F.5040701@nuclearwinter.com> 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 List-Id: linux-raid.ids I just loaded 3.3.0-4.fc16.x86_64 and started a check by running... echo check > /sys/block/md1/md/sync_action I'm getting the following from mdstat: md1 : active raid5 sdl2[8] sde2[1] sdf2[4] sda2[9] sdb2[10] sdc2[3] sdd2[0] sdk2[6] 2180641792 blocks super 1.2 level 5, 64k chunk, algorithm 2 [8/8] [UUUUUUUU] [==>..................] check = 14.9% (46442632/311520256) finish=21.9min speed=201328K/sec I can tell you for certain that these drives are not able to do 200MB/s. Further, iostat shows no disk activity (other than normal usage). mdadm - v3.2.3 - 23rd December 2011 Do I just need to wait for a new kernel from Fedora? --Larkin