mdadm raid 1

[xrado]

zivjo

poskusam uzpostaviti raid 1 mirroring
med particijo hda9 in hdc1 (system id: fd). na hda imam sistem, hdc ja 
pa samo tako zravn za mirror

#mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/hda9 
/dev/hdc1
ok!

pogledam z
#cat /proc/mdstat
..dokljer ne konca. ok!

pol pa ko restiram mi v dmesg napise:
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
 [events: 00000001]
 [events: 00000009]
md: autorun ...
md: considering hdc1 ...
md:  adding hdc1 ...
md: hda7 has same UUID as hdc1, but superblocks differ ...
md: created md0
md: bind<hdc1,1>
md: running: <hdc1>
md: hdc1's event counter: 00000009
md0: former device hda9 is unavailable, removing from array!
md0: max total readahead window set to 124k
md0: 1 data-disks, max readahead per data-disk: 124k
raid1: device hdc1 operational as mirror 0
raid1: md0, not all disks are operational -- trying to recover array
raid1: raid set md0 active with 1 out of 2 mirrors
md: updating md0 RAID superblock on device
md: hdc1 [events: 0000000a]<6>(write) hdc1's sb offset: 1467520
md: recovery thread got woken up ...
md0: no spare disk to reconstruct array! -- continuing in degraded mode
md: recovery thread finished ...

- zakaj mi to naredi "md0: former device hda9 is unavailable, removing 
from array!"?
- a moram tud mdadm.conf kaj nastavljat?

prosil bi za nasvet
lp
rado