Patent ID: 6710953
Filing Date: 2004-03-23
Classification: G11B

Abstract:
A method for improving data storage capacity of concentric data tracks on a rotating disk in a disk drive, wherein each data track comprises a plurality of embedded servo wedges separating a plurality of data wedges, the method comprising:establishing a servo-fault position threshold for aborting a write operation if a transducer head position error from a circular track centerline exceeds the servo-fault position threshold; tagging servo wedges having defects; ignoring the servo-fault position threshold at a tagged servo wedge during a track following operation thereby preventing the tagged servo wedge from aborting a write operation; preventing the write operation for a predetermined number of servo wedges immediately following the tagged servo wedge by skipping data wedges between the tagged servo wedge and a last servo wedge of the predetermined number of servo wedges; and writing data to a data wedge immediately following the last servo wedge.