Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein

An apparatus and method of adaptively controlling a flying height of a magnetic head above a disk in accordance with a change in a user environment of a disk drive apparatus includes determining if a parameter reset condition related to the flying height of the magnetic head has been set; measuring a temperature of a disk drive if the parameter reset condition has been set, obtaining a flying height profile representing a variation of spacing between the magnetic head and a disk in accordance with a variation of power supplied to a heater controlling the flying height of the magnetic head at the measured temperature, based on a reference flying height profile stored in the disk drive, and determining the power that is to be supplied to the heater of the magnetic head, the power corresponding to a target flying height of the magnetic head from the obtained flying height profile.