From mboxrd@z Thu Jan 1 00:00:00 1970 From: Farkas Levente Subject: somthing wrong in raid5 or in mdadm Date: Mon, 31 May 2004 15:47:38 +0200 Sender: linux-raid-owner@vger.kernel.org Message-ID: <40BB377A.1030306@bppiac.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: To: linux-raid@vger.kernel.org List-Id: linux-raid.ids hi, we try to setup a new server but something is wrong with raid5. although we has a few other servers with raid 5 but this start to getting strange. just look at this: ----------------------------------- # cat /proc/mdstat Personalities : [raid1] [raid5] read_ahead 1024 sectors Event: 13 md0 : active raid1 hda2[0] hdc2[1] 39097664 blocks [2/2] [UU] md1 : active raid1 hda1[0] hdc1[1] 1048704 blocks [2/2] [UU] md2 : active raid5 sde1[7] sdf1[6] sdd1[3] sdc1[2] sdb1[1] sda1[0] 720321792 blocks level 5, 128k chunk, algorithm 2 [7/5] [UUUU__U] unused devices: # mdadm --detail /dev/md2 /dev/md2: Version : 00.90.00 Creation Time : Mon May 24 18:41:31 2004 Raid Level : raid5 Array Size : 720321792 (686.95 GiB 737.61 GB) Device Size : 120053632 (114.49 GiB 122.93 GB) Raid Devices : 7 Total Devices : 6 Preferred Minor : 2 Persistence : Superblock is persistent Update Time : Mon May 31 15:37:36 2004 State : dirty, no-errors Active Devices : 5 Working Devices : 6 Failed Devices : 0 Spare Devices : 1 Layout : left-symmetric Chunk Size : 128K Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 17 1 active sync /dev/sdb1 2 8 33 2 active sync /dev/sdc1 3 8 49 3 active sync /dev/sdd1 4 0 0 4 faulty removed 5 0 0 5 faulty removed 6 8 81 6 active sync /dev/sdf1 7 8 65 7 spare /dev/sde1 UUID : 7fda241f:5a683e6e:4f22e751:036cd66e Events : 0.217 # uname -a; mdadm -V Linux kek.int.mkk.hu 2.4.21-15.EL.c0 #1 Thu May 13 04:18:33 BST 2004 i686 i686 i386 GNU/Linux mdadm - v1.5.0 - 22 Jan 2004 ----------------------------------- why the device is not started sync? how can be an active "dirty, no-errors" raid 5 from 7 disk working with 5 disks? and I can even mount /dev/md2! what can I do in this case? another realy strange thing with mdadm at all reboot we've got a NewArray and a SparesMissing message for all raid device. why??? yours. -- Levente "Si vis pacem para bellum!"