[Linux-HA] Testing behaviour to disk faults

[Eduardo Grosclaude]

Hello,
I intend to test my heartbeat+DRBD cluster and I'm curious about what
will happen when the disk breaks. How should I monitor disk
malfunctioning? How much of a test can I get? Is there some
(non-destructive :) method to bring offline a directly-attached disk,
or otherwise simulate a disk failure? IIRC software RAID has a special
mode to allow for fault injections. I would like something alike for
regular disk devices.
Thank you very much

-- 
Eduardo Grosclaude
Universidad Nacional del Comahue
Neuquen, Argentina