From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland 'ValiDOM' Jungnickel Subject: [Question] Fail event during reshape raid5 -> raid6 Date: Tue, 03 Sep 2013 09:20:00 +0200 Message-ID: <52258DA0.4040704@validom.de> 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! I started reshaping a 3-device raid5 to a 4-device raid6. After some hours, I got a fail event on a harddrive which was already used in the raid5. There are two different raid-groups on these harddrives, a reshape of the second one has not yet started. What would you suggest? * stop the reshape, go back to raid5 and start rebuild to the new disk (how?) * just wait, hope and pray... ( there is no backup, I do not have harddrives to backup to as this is just to much...) md0 : active raid6 sdc2[0] sde2[4](F) sdb2[3] sdd2[1] 2858420224 blocks super 0.91 level 6, 64k chunk, algorithm 18 [4/2] [UU__] [=>...................] reshape = 7.8% (112662528/1429210112) finish=4938.2min speed=4442K/sec md1 : active raid5 sdc1[0] sde1[2] sdb1[3](S) sdd1[1] 1048575744 blocks level 5, 64k chunk, algorithm 2 [3/3] [UUU] (md1 not mounted, sde1 will fail once used/checked and the raid5 will automatically start rebuild on sdb1) Thanks! Vali