US 12,236,985 B1
Magnetic disk device
Yusuke Tomoda, Yokohama Kanagawa (JP)
Assigned to Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed by Kabushiki Kaisha Toshiba, Tokyo (JP); and Toshiba Electronic Devices & Storage Corporation, Tokyo (JP)
Filed on Jan. 26, 2024, as Appl. No. 18/424,186.
Claims priority of application No. 2023-147532 (JP), filed on Sep. 12, 2023.
Int. Cl. G11B 5/55 (2006.01)
CPC G11B 5/5539 (2013.01) 9 Claims
OG exemplary drawing
 
1. A magnetic disk device comprising:
a disk including a band including a plurality of tracks, each of the tracks including a plurality of sectors;
a write head writing data to the disk;
an adjustment unit adjusting each of a first adjustment value that is the number of the plurality of sectors in each of the tracks of the band, a second adjustment value that is a length of each of the sectors in a circumferential direction of the disk, and a third adjustment value that is the number of the plurality of tracks of the band; and
a write processing unit capable of selecting shingled magnetic recording processing of overwriting data to the plurality of tracks in a radial direction of the disk and performing write processing based on the first to third adjustment values,
wherein
when the number of the plurality of tracks of the band is t+1 and the number of unused sectors among the plurality of sectors of the band is e, the adjustment unit adjusts the first to third adjustment values to establish ext.