Magnetic disk device and method
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorDaigo Nakamura
Life of this patent
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Abstract
According to one embodiment, a magnetic disk device includes a magnetic disk, a magnetic head, and a controller. The magnetic disk has a plurality of tracks. The magnetic head performs reading and writing from and to the magnetic disk. The controller controls write operations to a first region and a second region of the magnetic disk in different manners. The second region is narrower in track pitch than the first region.
Claims20
A magnetic disk device comprising:
- a magnetic disk having a plurality of tracks;
- a magnetic head that performs reading and writing from and to the magnetic disk;
- and
- a controller that controls write operations to a first region and a second region of the magnetic disk in different manners, the second region being narrower in track pitch than the first region, wherein
- the controller
- calculates a decrease in the track pitch and generates, from the decrease, write control information for each of the first region and the second region, and
- controls the write operations according to the write control information.
(canceled)
A method of controlling a magnetic disk device, the magnetic disk device comprising a magnetic disk having a plurality of tracks;
- a magnetic head that performs reading and writing from and to the magnetic disk, the method comprising:
- controlling write operations to a first region and a second region of the magnetic disk in different manners, the second region being narrower in track pitch than the first region, wherein
- the method further comprising
- calculating a decrease in the track pitch;
- generating, from the decrease, write control information for each of the first region and the second region;
- and
- controlling the write operations according to the write control information.
(canceled)
Dependencies are inferred from the claim text.