A battery positive cover is provided for a battery terminal and a wire harness. The method continues with the DS processing module determining a failure mode level that is indicative of whether one or more of the multiple storage servers are in the failure mode. The upgraded thrust bearing is accommodated by machining semicircular cutouts of a predetermined dimension and axial length coextensive with the inner surface of a central opening in the carrier housing, which is the only access for installation of the thrust bearing. Preferably, an on-off switch and a battery are mounted to the top of the base plate.