Patent ID: 7956552

Claim:
An identification apparatus, the apparatus comprising: a management network comprising a tangible storage device storing a computer readable program and a processor executing the computer readable program, the management module assigning a group selection to a logical group of a plurality of data processing devices disposed in a plurality of racks, each rack comprising at least two data processing devices, the management module further comprising a color selection interface that receives a color identifying value and the group selection and communicates the color identifying value to each data processing device in the logical group; each data processing device comprising: at least two light emitting diodes (LED), each LED emitting a wavelength of light that is different from a wavelength of each other LED; a controller driving the at least two LEDs to each emit light at specified intensities in response to the color identifying value; and a blending medium combining the light emitted by the at least two LEDs into an identifying color that identifies the logical group.