I'm testing some NAS setups using virtualbox, with several virtual hard drives, and software raid.
I would like to test the behavior under certain fails, and I would like to simulate that one of the hard disks broke and there's need to rebuild the RAID...
Would it be enough to do a
cat /proc/urandom > /virtualdisk
Or as the virtual disks are containers, VBox couldn't use it and would break the VirtualBox machine?