Patent ID: 7310196
Filing Date: 2007-12-18
Classification: G11B

Abstract:
1. A disk drive comprising: a rotatable data storage disk; a transducer that is configured to read and write data on the disk; an interface that is configured to receive data and associated write commands, and a park signal, wherein the park signal indicates an imminent loss of power to the disk drive; a write buffer that is configured to temporarily store the received data and associated write commands while the data waits to be written on the disk via the transducer; an actuator that is configured to move the transducer between a parked position and tracks on a disk where data is read and written; and a controller that is configured to execute the buffered write commands by positioning the transducer relative to tracks on the disk while writing data from the write buffer to the disk, and is further configured to respond to the park signal indicating an imminent loss of power to the disk drive by moving the transducer to the park position before data in the write buffer completes being written to the disk.