Seagate Technology Incorporated

Matthew Edward Hastings

Garry Edward Korbel

Paul William Burnett

Feng X Li

Cary Dean Johnson

Todd Phillip Fracek

Donald Ray Bloyer

Gary Gang Jing

Wei-Hua Lin

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.

Disc drive failure prediction

Systems and methods are provided through which the current to a spindle motor of the recording medium of a mass storage device is modulated to avoid anomalies in the operation of mass storage device and reduce power consumption. In the example of a disc drive, the current is modulated to prevent expected or predicted disturbances in the air bearing between a read/write head and the recording medium, and to reduce the power consumption when no disturbances are predicted or expected.

Systems, apparatus, and methods for motor control

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Bloomington, MN, United States of America

Matthew Edward Hastings