I've been looking for a solution for this problem for a couple of days now. My Raid Array worked fine until I rebooted.
If I do a 'raidstart /dev/md0', I get '/dev/md0: Invalid argument'
When I take a look in dmesg, I can see 'md: hde1 has zero size, marking faulty!'
The thing is, cat /proc/ide/hde/capacity = 30064608
I'm running RedHat Enterprise Linux 3 AS Update 2.
Any idea how to solve that?