Yo!
John,
Ok…if you want to play the hardware swapping game, you simply
pull your controller and drive, install the 2091, plug the drive in and
boot it or at the least run HDToolbox on it.
If you want to play the software game, you write a SCSIDirect
command that reads in the RDB's and use the info in hardblocks.h to break
out the information you needed.
Don