Embodiments of an optical device, an array of optical devices, and a technique for fabricating the optical device or the array are described. An example process is dynamic in the face of fluctuations in the request load to the distributed computer system and the periodic adjustments to the placement of applications onto servers in said distributed computer system. Proper sizing also requires that the agent not cause runnability or chemical problems with other materials or equipment used in the papermaking process. The container is fabricated from hard plastic or similar light-weight, rigid, weatherproof material.