About 1990 the drives for HP disk cabinets (about a small USB stickfull in modern terms were huge and hugely heavy. There was a crane to ift them in and out which consisted of a steel bar that fitted over the cabinets and a sling with a pulley system to lift the drives. Same job but portable enough for the field engineers to bring with them instead of having to have one permanently on site but they did look a bit dodgy in use.