Patent ID: 8531794

Claim:
A disk drive system comprising: (a) one or more magnetic disks mounted on a spindle motor, a plurality of concentric zones comprising an alternating series of servo zones and overlap zones, wherein the servo frequency of each servo zone is different from the servo frequency of the other servo zones, wherein the servo zones are patterned from the inner diameter of the one or more magnetic disks to the outer diameter according to increasing servo frequency, wherein each servo zone comprises a plurality of servo patterns, wherein each overlap zone comprises a plurality of overlap patterns, and wherein each overlap zone has a radial overlap length; and (b) an actuator comprising a pivot point and at least one slider, wherein each slider has a read head and a write head, wherein each slider has a radial read-write offset length (RWO) that varies with the radial position of the slider, wherein each slider has a maximum RWO within each overlap zone, and wherein the radial overlap length of each overlap zone is greater than the maximum RWO for that overlap zone.