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/