Data storage device and method of tracking data stored in the same

摘要

Provided are a data storage device and a method of tracking data stored in the data storage device. The device includes a data storage medium on which data can be recorded and erased, a plurality of probes for scanning the data storage medium to detect data, a scanner for driving the data storage medium or the probes, and a controller for applying a control signal to the scanner. The method includes (a) oscillating the probe or the data storage medium; (b) detecting an off-track error of the probe on the data storage medium by the oscillation; and (c) adjusting a scanning position of the probe on the data storage medium to compensate for the off-track error.