An exemplary housing for a hard disk drive includes an enclosure, a bracket slidably mounted in the enclosure, and a panel mounted to the bracket. Then a response to the test request is received from the server. In certain examples, the invention is drawn to a circuit comprising a switch, a logic circuit, an electrical device, and an LED subcircuit, whereby the electrical device is turned on by closing the switch, and whereby the LED functions as an indicator light remaining on while the electrical device remains on, and turning off when the electrical device is turned off. The cap has multiple spaced apart openings extending through the cover portion, wherein each of the openings corresponds to a different one of the recesses in the ledge of the cup. Each of the outerslides is slidably connected to the innerslide.