Patent ID: 8687314

Claim:
A method, comprising: sensing a first servo sensor while a longitudinal tape is moved in a first direction, wherein the first servo sensor is configured for sensing a lateral position of a magnetic head with respect to at least one defined servo track of the longitudinal tape; determining position error between the magnetic head and a desired position related to the at least one defined servo track; calculating a first average position of the magnetic head for at least one first run-out cycle while the longitudinal tape is moved in the first direction; calculating a first offset of the magnetic head while the longitudinal tape is moved in the first direction based on an assumption that the first average position of the magnetic head occurred when the tape was at a top-most position or a bottom-most position of a supply reel; operating a coarse actuator to position the coarse actuator substantially at a target position using the first offset and the first average position, wherein the coarse actuator is configured to translate a fine actuator laterally with respect to the longitudinal tape.