| 摘要 |
Embodiments of the invention provide a data storage device and its control method that are capable of minimizing the possibility of head deterioration while maintaining the minimum required sustained data rate. In one embodiment, each track is divided into three areas (A, B, and C). When a 1/3 track is accessed, the head is changed to access a 1/3 track on the next recording surface. In this instance, LBAs are assigned to disks so that heads Hd 0 through Hd 4, which access both surfaces of disks 0 and 1, are selected for accessing purposes in the Hd 0, Hd 1, Hd 2, Hd 3, Hd 0, and Hd 1 order while an area selection is made in the area A, area B, and area C order.
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