An arrangement for wireless communication includes apparatus operable to establish a region of wireless communications capability, and operable to establish communication with a communications hub by way of a backhaul. An embodiment discloses a method of preparing cement kiln dust comprising: providing cement kiln dust having an original particle size; and altering the mean particle size of the cement kiln dust from the original size by grinding, separating, or a combination thereof. In response to the selected hard disk drive exiting standby mode, the routing table entry is modified to direct and route requests for access to the selected hard disk drive back to the drive itself.