A distributed data storage system stores a single image file system across a plurality of physical storage volumes. The archwire assembly further includes a stop applied to the archwire and adapted to limit the movement of the sleeve along the archwire. In operation, individual mirrors are selectively deflected and serve to spatially modulate light that is incident to, and then reflected back through, the upper substrate. The operating rates of an integrated circuit may be controlled by programming a clock register for the integrated circuit.