[CentOS] Help. Failed event on md1

Quoting Eduardo Grosclaude <eduardo.grosclaude at gmail.com>:

> I'd like to know of a way to deliberately (though non-hardware-destructively
> :) ) cause such failures for educational purposes. Can anybody suggest one?

Replace device names as needed:

# mdadm /dev/md0 -f /dev/sda1

-- 
See Ya' later, alligator!
http://www.8-P.ca/