A storage system maintains a journal of journal entries and at lease one snapshot of one or more data volumes. The CPU includes two or more processing cores and a power control unit to regulate voltage applied to the CPU based upon the number of processing cores that are active. Other aspects further include a drivetrain system within the axle housing system that includes a differential, a pair of inner constant velocity joints attached to opposing sides of the differential, a pair of axle shafts attached to the inner CV joints, and a pair of outer CV joints attached to the axle shafts, wherein the CV joints are maintained in a fixed angular relationship.