Surface-enhanced Raman optical data storage systems having increased reading and writing speeds, that is, increased data transfer rates, are disclosed. When the driver depresses the accelerator pedal to require a large torque demand, such drive control enables quick output of a large torque from the engine to a ring gear shaft as the driveshaft. The lens holder defines a central hollow. The access tubes have a first terminal opening located at or above a ground surface and have a length that extends from the first terminal opening at least part of the depth of the well bore. The liquid-dispensing system also includes a pump and control system to apply pressure on a reservoir that contains the liquid.