Patent ID: 6515817
Filing Date: 2003-02-04
Classification: G11B

Abstract:
A magnetic disk drive, comprising:at least one magnetic disk; a spindle motor for driving said at least one magnetic disk; at least one head and actuator for positioning said head at a target track on said disk in a seek operation; means for controlling power supplied to said spindle motor for stopping rotation of said spindle motor in a low power consumption state and starting rotation of said spindle motor in response to receiving read and write commands; a disturbance compensation circuit for providing disturbance compensation parameters used in said seek operation for read and write commands; wherein in response to said read and write commands received in said low power consumption state, a seek operation for said read command is performed using predetermined disturbance compensation parameters provided by said disturbance compensation circuit, and a seek operation for said write command is performed using disturbance compensation parameters determined by said disturbance compensation circuit with a dummy seek operation at a time of receiving said write command.