Abstract: A system and method evaluate the efficiency of circadian-effective luminaires. Such circadian-effective luminaires affect the master biological clock in the brain, which regulates the daily timings of behavioral activities and physiological functions. Disruption of circadian rhythms can lead to poor performance and poor health, while consistent exposure to bright days and dim nights is necessary for circadian entrainment, and thus for good sleep and good health. The system and method provide a standard test for assessing the efficiency of luminaires for providing circadian-effective light to building occupants. The system and method measure and quantify luminaire efficiency based on the electrical watts needed, termed SOWatt, to reach a circadian stimulus (CS) criterion of 0.3 at the eyes of a standard observer (SO). The system and method can be applied to ceiling mounted, accent, and table-top luminaires.

Abstract: A system for operating a data storage device having a plurality of sectors and at least one port, each port having a transmitter and a receiver, is disclosed. In one embodiment the system includes coupling at least one of the transmitters to at least one of the receivers, providing power to the data storage device, detecting that the transmitter is coupled to the receiver, and executing code for exercising the data storage device.

Abstract: A system for operating a data storage device having a plurality of sectors and at least one port, each port having a transmitter and a receiver, is disclosed. In one embodiment the system includes coupling at least one of the transmitters to at least one of the receivers, providing power to the data storage device, detecting that the transmitter is coupled to the receiver, and executing code for exercising the data storage device.

Abstract: A data storage device includes a plurality of sectors and a port, the port having a transmitter and a receiver. In one embodiment a method includes coupling the transmitter to receiver, providing power to the data storage device, detecting that the transmitter is coupled to the receiver, and executing code for exercising the data storage device.

Abstract: A method for operating a data storage device having a plurality of sectors and at least one port, each port having a transmitter and a receiver, is disclosed. In one embodiment the method includes coupling at least one of the transmitters to at least one of the receivers, providing power to the data storage device, detecting that the transmitter is coupled to the receiver, and executing code for exercising the data storage device.