It's some pretty heavy engineering. The first parts of it lay out the minimum allowable, and recommended dimensions for the room that the drive, the computer, the operator console, their various power supplies and glue logic racks will be installed into, in plan form, mapping out their positions (a multi-cabinet U-shape with the free-standing operator console nestled within) plus the floor-level cabling runs and the space needed for operators to get around the back of the machines to access service panels etc that would otherwise be sandwiched against the walls. I can't recall the minimum dimensions, but the recommended space wasn't far off the entire floor area of my apartment (which is about the same size as several previous workplaces, encompassing different offices and even medical examination rooms), pegging it around a square 25ft / 7-and-a-bit metres on each side. The access space around the "back" of the cabinets was no more than 4ft even so.