Patent ID: 6421197
Filing Date: 2002-07-16
Classification: B82Y,G11B

Abstract:
A method for optimizing performance of a disc drive having a head with separate write and read elements to respectively write and read data to and from a plurality of tracks defined on a rotatable disc, comprising steps of:(a) identifying an initial offset for the head as a radial distance between the read element and the write element as the head is positioned adjacent a selected track; (b) selecting initial, asymmetric first and second write fault thresholds for the selected track on opposing sides of and at different radial distances from a center of the selected track; (c) adjusting the initial offset to identify a final offset for the head in relation to the initial, asymmetric first and second write fault thresholds; and (d) selecting final, symmetric first and second write fault thresholds for the selected track on opposing sides of and at a common radial distance from the center of the selected track, wherein writing of data to the selected track is suspended when the read element moves away from the center of the selected track a distance greater than a selected one of the final, symmetric first and second write fault thresholds.