In a method for predicting failure of a disc drive during operation of the
disc drive, a write fault count is maintained that corresponds to write
faults encountered during write operations to a disc of the disc drive.
Additionally, a frequency domain representation of a position error
signal of a head of the disc drive is obtained. Finally, failure of the
disc drive is predicted based on the write fault count and the frequency
domain representation of the position error signal. Another aspect of the
present invention relates to a disc drive that is capable of performing
the above-described method.