Magnetic disk device and write processing method
OwnerYuki NISHIDAinventor
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Abstract
A magnetic disk device includes a disk, a head, and a control circuit. When writing data to a target range of a target track, the control circuit calculates an off-track amount based on the use information indicating use states of each of the first adjacent track and the second adjacent track, positions the head according to the calculated off-track amount, and writes data in the target range with the head positioned according to the calculated off-track amount.
Claims20
A magnetic disk device comprising:
- a disk including, on a recording layer, a target track, first and second adjacent tracks that are adjacent to the target track and are respectively on either side of the target track in a radial direction;
- a head configured to write data to the recording layer of the disk;
- and
- a control circuit configured to:
- when data is written in a target range of the target track, calculate an off-track amount based on the use information indicating use states of each of the first adjacent track and the second adjacent track, position the head according to the calculated off-track amount, and write data in the target range with the head positioned according to the calculated off-track amount.
A write processing method applied to a magnetic disk device including a disk including on a recording layer, a target track, first and second adjacent tracks that are adjacent to the target track and are respectively on either side of the target track in a radial direction, and a head configured to write data to the recording layer of the disk, the method comprising:
- determining use states of the first adjacent track and the second adjacent track;
- calculating an off-track amount based on the use states;
- positioning the head according to the calculated off-track amount;
- and
- writing data to a target range of the target track with the head positioned according to the calculated off-track amount.
Dependencies are inferred from the claim text.