You are right, the array starts at pos 0 and so pos 1 and 7 are the right pos. the 2. try was perfect. fsck shows this:
fsck -n /dev/md0
fsck from util-linux-ng 2.17.2
e2fsck 1.41.12 (17-May-2010)
/dev/md0 wurde nicht ordnungsgemÃÃ ausgehÃngt, PrÃfung erzwungen.
Durchgang 1: PrÃfe Inodes, Blocks, und GrÃÃen
Durchgang 2: PrÃfe Verzeichnis Struktur
Durchgang 3: PrÃfe Verzeichnis VerknÃpfungen
Durchgang 4: ÃberprÃfe die ReferenzzÃhler
Durchgang 5: ÃberprÃfe Gruppe Zusammenfassung
dd/dev/md0: 266872/1007288320 Dateien (15.4% nicht zusammenhÃngend), 3769576927/4029130864 BlÃcke
and:
mdadm --detail /dev/md0
/dev/md0:
Version : 0.90
Creation Time : Fri Jun 10 14:19:24 2011
Raid Level : raid5
Array Size : 17581661952 (16767.18 GiB 18003.62 GB)
Used Dev Size : 1465138496 (1397.26 GiB 1500.30 GB)
Raid Devices : 13
Total Devices : 13
Preferred Minor : 0
Persistence : Superblock is persistent
Update Time : Fri Jun 10 14:19:24 2011
State : clean
Active Devices : 13
Working Devices : 13
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
UUID : 8c4d8438:42aa49f9:a6d866f6:b6ea6b93 (local to host nassrv01)
Events : 0.1
Number Major Minor RaidDevice State
0 8 160 0 active sync /dev/sdk
1 8 208 1 active sync /dev/sdn
2 8 176 2 active sync /dev/sdl
3 8 192 3 active sync /dev/sdm
4 8 0 4 active sync /dev/sda
5 8 16 5 active sync /dev/sdb
6 8 64 6 active sync /dev/sde
7 8 48 7 active sync /dev/sdd
8 8 80 8 active sync /dev/sdf
9 8 96 9 active sync /dev/sdg
10 8 112 10 active sync /dev/sdh
11 8 128 11 active sync /dev/sdi
12 8 144 12 active sync /dev/sdj
normaly i use fsck.ext4 e.a. fsck.ext4dev. problem? what means 15,4% not related? the quote of lost data? after that i shrink like this:?
mdadm /dev/md0 --fail /dev/sdj
mdadm /dev/md0 --remove /dev/sdj
mdadm --detail --scan >> /etc/mdadm/mdadm.conf
right way? i assume that the disk that i take off the raid is not the same like i added at last? so i have to read out the serial to find it under the harddrives?
many thx so far
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