From mboxrd@z Thu Jan 1 00:00:00 1970 From: mickg Subject: mdadm RAID5 Grow Date: Wed, 4 Oct 2006 21:26:47 -0700 (PDT) Message-ID: <6652499.post@talk.nabble.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I have been trying to run: mdadm --grow /dev/md0 --raid-devices=6 --backup-file /backup_raid_grow I get: mdadm: Need to backup 1280K of critical section.. mdadm: /dev/md0: Cannot get array details from sysfs Software versions: mdadm version 2.5.3, kernel 2.6.17.13 Note that /dev/md0 does in fact have 6 drives, with 4+2 spares: linux-nas:~/source/mdadm-2.5.3 # mdadm -D /dev/md0 /dev/md0: Version : 00.90.03 Creation Time : Mon Dec 31 20:20:05 2001 Raid Level : raid5 Array Size : 937681536 (894.24 GiB 960.19 GB) Device Size : 312560512 (298.08 GiB 320.06 GB) Raid Devices : 4 Total Devices : 6 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Thu Oct 5 00:24:18 2006 State : clean Active Devices : 4 Working Devices : 6 Failed Devices : 0 Spare Devices : 2 Layout : left-symmetric Chunk Size : 128K UUID : 0d4e2bae:95de9dc6:4bf9f695:9e1a48be Events : 0.988859 Number Major Minor RaidDevice State 0 8 209 0 active sync /dev/sdn1 1 8 145 1 active sync /dev/sdj1 2 8 129 2 active sync /dev/sdi1 3 8 161 3 active sync /dev/sdk1 4 8 192 - spare /dev/sdm 5 8 176 - spare /dev/sdl As I said, I am getting an error resizing the array. Would it need to be unmounted to work properly (It is currently mounted under lvm)? Thank you in advance, mickg -- View this message in context: http://www.nabble.com/mdadm-RAID5-Grow-tf2386446.html#a6652499 Sent from the linux-raid mailing list archive at Nabble.com.