Abstract: A storage system establishes a staging region, for temporary writing of arriving data, and a stable region, for transfer of data from the staging region, in storage memory. The storage system establishes resiliency groups, each with a characteristic level of redundancy that is settable on an individual basis. The storage system performs data accesses of data stripes in accordance with the staging region, the stable region, a first resiliency group and a second resiliency group.

Abstract: The present invention provides a process and product for applying a hard coating to corrugated roller shells, and other roller shells having an irregular outer contact surface with raised portions. The roller, together with the welding electrode and associated particle feeder are movably attached to a fixture that allows them to move with respect to each other. The electrode is positioned at a starting location, actuated to form a weld puddle into which the particles are fed, and moved along an application path that follows the raised portions.