Rotating storage device and its control method

摘要

The present invention provides a method and system effective to remove contamination without generating new contamination by contact between a head an a disk. The method comprising: tracking following on outer area of a disk outside a valid storage area after head (3) is loaded from ramp loading mechanism (17) onto disk (1); repeating moving toward the inside and outside of the disk on outer area after track following on the outer area of the disk; and making the speed of moving toward the outside Vout greater than, desirably few times as high as, the speed of moving toward the inside Vin.