How I have to start a RAID-10 array after disk failure?
My RAID-10 is a RAID-1 array /dev/md05 overtwo RAID-0 arrays /dev/md50
and /dev/md51. The two RAID-0 arrays are over partitions /dev/hd[ik]5
and /dev/hd[eg]5.
The array /dev/md05 is running fine. Now I've tested an failure
situation: I shut down, disconnect the hdk disk and reboot. /dev/md51
would autostart by kernel. /proc/mdstat says:
Personalities : [linear] [raid0] [raid1] [raid5]
read_ahead 1024 sectors
md51 : active raid0 hdg5[1] hde5[0]
7369216 blocks 4k chunks
unused devices: <none>
Now I try to start /dev/md05:
raidstart /dev/md05
and get the error:
could not import md50!
autostart md50 failed!
/dev/md05 invalid argument
Why?
I can start /dev/md05 after editing /etc/raidtab, set /dev/md51
as failure-disk and call
mkraid -f /dev/md05
Now /dev/md05 is running. If I reboot, again raidstart failed an I must
use mkraid.
Is this behavior intended? And if, is this documented? And if, where?
Peter
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