Patent ID: 7436614
Filing Date: 2008-10-14
Classification: G11B

Abstract:
1. A storage device comprising: one or more disks; a plurality of heads provided respectively for a plurality of recording surfaces of said one or more disks; and a head controller configured to exercise switchover control over said heads so that a successive access area in which said heads successively read or write data does not exceed one track; wherein each of said plurality of recording surfaces has tracks, which are divided into two or more partial areas, and wherein said head controller exercises control so that said successive access area of each head in one cylinder is said partial area, wherein each of said recording surfaces has (N−1) partial areas where N is the number of said heads (N is an integer equal to or greater than 2), and wherein said head controller uses said partial area as said successive access area and switches to another head each time one head accesses said partial area.