DATA WRITING METHOD USING MAGNETIC DISK DEVICE, OFF-TRACK MARGIN SETTING METHOD, MAGNETIC DISK DEVICE, AND OFF-TRACK MARGIN SETTING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a data writing method using a magnetic disk device capable of enhancing performance and improving signal quality.;SOLUTION: In the data writing method using the magnetic disk device, data are written in the present sector of the present track when a deviation from a track center obtained on the basis of servo data deviates in the direction of the track in which data are written last by only a first threshold or smaller (S103) and the direction of the track in which data are written next by only a second threshold or smaller previously set so that a signal quality standard is satisfied (S104) in the present sector of the present track.;COPYRIGHT: (C)2009,JPO&INPIT