From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sevrin Robstad Subject: Create Raid6 with 1 missing member fails Date: Sun, 17 Feb 2008 13:37:56 +0100 Message-ID: <47B82AA4.10402@start.no> 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 List-Id: linux-raid.ids I tried to create a raid6 with one missing member, but it fails. It works fine to create a raid6 with two missing members. Is it supposed to be like that ? mdadm -C /dev/md0 -n5 -l6 -c256 /dev/sd[bcde]1 missing raid5: failed to run raid set md0 mdadm: RUN_ARRAY failed: Input/output error mdadm: stopped /dev/md0 mdadm --version mdadm - v2.6.4 - 19th October 2007 uname -a Linux compaq2.lan 2.6.23.15-137.fc8 #1 SMP Sun Feb 10 17:03:13 EST 2008 x86_64 x86_64 x86_64 GNU/Linux mdadm --examine /dev/sdb1 /dev/sdb1: Magic : a92b4efc Version : 00.90.00 UUID : e4147673:e22e02ac:09e8c875:b3e364c1 Creation Time : Sun Feb 17 14:31:55 2008 Raid Level : raid6 Used Dev Size : 488295424 (465.67 GiB 500.01 GB) Array Size : 1464886272 (1397.02 GiB 1500.04 GB) Raid Devices : 5 Total Devices : 5 Preferred Minor : 0 Update Time : Sun Feb 17 14:31:55 2008 State : active Active Devices : 4 Working Devices : 4 Failed Devices : 1 Spare Devices : 0 Checksum : d9c93170 - correct Events : 0.1 Chunk Size : 256K Number Major Minor RaidDevice State this 0 8 17 0 active sync /dev/sdb1 0 0 8 17 0 active sync /dev/sdb1 1 1 8 33 1 active sync /dev/sdc1 2 2 8 49 2 active sync /dev/sdd1 3 3 8 65 3 active sync /dev/sde1 4 4 0 0 4 faulty