Patent ID: 6643089
Filing Date: 2003-11-04
Classification: G11B

Abstract:
A magnetic disk system comprising:means for supporting and rotating a plurality of magnetic disk mediums having recording surfaces formatted with a plurality of tracks, each track divided into sectors in a circumferential direction; magnetic heads respectively positioned on each recording surface of the plurality of magnetic disk mediums, for reading and writing data from and to the magnetic disk mediums; means for instructing said magnetic heads to perform a seek operation; and control means for controlling data reading and writing from and to the magnetic disk mediums while the seek operation is performed, said control means including determining means for dynamically determining an access state of the magnetic disk mediums by the magnetic heads, and access selecting means for selecting either a first sector access mode in which after sectors on a track in a cylinder on a first magnetic disk medium are accessed, sectors on a track on a second magnetic disk medium in the same cylinder are accessed, or a second sector access mode in which after sectors on the track on the first magnetic disk medium are accessed, sectors on another track on the same recording surface of the first magnetic disk medium are accessed, the selection of sector access modes being based on the determined access state, the access selecting means accessing the magnetic disk mediums according to the selected mode.