Magnetic disk device and DOL setting method
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorNobuhiro Maeto
Life of this patent
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Abstract
According to one embodiment, a magnetic disk device including a disk, a head which writes data to the disk and reads data from the disk, and a controller which sets a first DOL for a first sector group and a second DOL for a second sector group to different values, the first sector group including one or more first sectors and a first parity sector, the first sectors which allow an error correction process to be performed for each track based on the first parity sector, and are continuously arranged in a circumferential direction of the disk from the first parity sector, the second sector group including one or more second sectors which allow no error correction process to be performed for each track, and are continuously arranged in the circumferential direction.
Claims8
A magnetic disk device comprising:
- a disk;
- a head that writes data to the disk and reads data from the disk;
- a first sector group including one or more first sectors and a first parity sector, the first sectors allow an error correction process to be performed for each track based on the first parity sector;
- and
- a second sector group including one or more second sectors that allow no error correction process to be performed for each track, and are continuously arranged in a circumferential direction.
Dependencies are inferred from the claim text.