Upgraded to 2.6.32 kernel and now it says
Code:
tgrimley@gutsy:~$ sudo mdadm --grow /dev/md0 --level=6 --raid-devices=5 --backup-file=/home/tgrimley/md0.backup
[sudo] password for tgrimley:
mdadm level of /dev/md0 changed to raid6
mdadm: this change will reduce the size of the array.
use --grow --array-size first to truncate array.
e.g. mdadm --grow /dev/md0 --array-size 1565568512
mdadm: aborting level change
tgrimley@gutsy:~$
Looked online and it seems this is common if there is a bitmap, but I don't have one!
Code:
tgrimley@gutsy:~$ sudo mdadm -D /dev/md0
/dev/md0:
Version : 0.90
Creation Time : Sat Aug 22 13:50:42 2009
Raid Level : raid5
Array Size : 5860535808 (5589.04 GiB 6001.19 GB)
Used Dev Size : 1953511936 (1863.01 GiB 2000.40 GB)
Raid Devices : 4
Total Devices : 5
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Fri Feb 12 08:12:52 2010
State : clean
Active Devices : 4
Working Devices : 5
Failed Devices : 0
Spare Devices : 1
Layout : left-symmetric
Chunk Size : 128K
UUID : 117232ce:f55876b7:9822568f:9ddc1a1a
Events : 0.1388737
Number Major Minor RaidDevice State
0 8 81 0 active sync /dev/sdf1
1 8 129 1 active sync /dev/sdi1
2 8 65 2 active sync /dev/sde1
3 8 33 3 active sync /dev/sdc1
4 8 97 - spare /dev/sdg1
tgrimley@gutsy:~$
Bookmarks