DYNAMICALLY OPTIMIZING READ PERFORMANCE BY ADJUSTING SERVO-BASED HEAD LOCATION

摘要

In one embodiment, a method includes determining a reading performance based on one or more metrics, adjusting a commanded lateral reading location of a head relative to a medium, determining the reading performance after the adjusting, comparing the reading performance after the adjusting relative to the reading performance before the adjusting for determining whether the reading performance has improved, and selecting a commanded lateral reading location based on the comparing. In another embodiment, a controller is configured to perform the foregoing method. In yet another embodiment, a computer program product includes a computer readable storage medium having program instructions embodied therewith, the program instructions readable and/or executable by a controller configured to perform the foregoing method.

主权项

1. A computer-implemented method, comprising:
determining a reading performance of a head positioned at a commanded lateral reading location based on one or more metrics; adjusting a lateral reading location of the head relative to a medium by moving the head in a lateral direction away from the commanded lateral reading location to an adjusted lateral reading location; determining a reading (performance of the head after the adjusting; comparing the reading performance after the adjusting to the reading performance before the adjusting for determining whether the reading performance has improved; and selecting an optimal lateral reading location based on the comparing; wherein the adjusted lateral reading location corresponds to a new lateral servo location relative to a previous lateral servo location used prior to the adjusting; and wherein the new lateral servo location and the previous lateral servo location are spatially separated by a predefined adjustment increment in an analog domain.