Magnetic disk drive and control method
AssigneeKabushiki Kaisha Toshiba
InventorDaisuke Sudo
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Abstract
According to one embodiment, a magnetic disk device includes: a magnetic disk having data spiral tracks extending from an outer circumference towards an inner circumference or from an inner circumference towards an outer circumference; a head configured to read data recorded in the data tracks of the magnetic disk that is rotating and to write data to the data tracks; and a controller configured to control the head to follow a predetermined data track in units obtained by subtracting a seek time required for the head to seek the predetermined data track from a rotation period.
Claims5
A magnetic disk device comprising:
- a magnetic disk having data spiral tracks extending from an outer circumference towards an inner circumference or from an inner circumference towards an outer circumference;
- a head configured to read data recorded in the data tracks of the magnetic disk that is rotating and to write data to the data tracks;
- and
- a controller configured to control the head to follow a predetermined data track in units obtained by subtracting a seek time required for the head to seek the predetermined data track from a rotation period.
A control method of a magnetic disk device comprising a magnetic disk having data spiral tracks extending from an outer circumference towards an inner circumference or from an inner circumference towards an outer circumference, the control method comprising:
- reading, by a head, data recorded in the data tracks of the magnetic disk that is rotating;
- writing, by the head, data to the data tracks;
- and
- controlling, by a controller, the head to follow a predetermined data track in units obtained by subtracting a seek time required for the head to seek the predetermined data track from an integer multiple of a rotation period.
Dependencies are inferred from the claim text.