Address assigning method, disk drive, and data writing method
AssigneeHitachi Global Storage Netherlands B.V.
InventorsTetsuya Uemura, Hideki Saga
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Abstract
Embodiments in accordance with the present invention enable a disk drive of an address system to write data normally, wherein track groups of different track widths are discretely disposed on the storage medium in a same disk drive and the dimensional relationship among physical block addresses of a sector is valid for the dimensional relationship among logical block addresses. Track groups are managed corresponding to their respective track width in a disk drive and for disposing successively in a logical block address space the respective track groups located discretely on the physical block address space.
Claims16
An address assigning method for a disk drive comprising a storage medium and a controller that transmits/receives commands and data between the storage medium and a high-order device and that controls write/read operations toward said storage medium, the storage medium including a first track group having a first track width and a second track group having a second track width,
- wherein said controller executes
- a first address assigning step for assigning logical block addresses to said first track group;
- and
- a second address assigning step for assigning logical block addresses to said second track group.
A disk drive comprising:
- a storage medium;
- a first track group having a first track width on said storage medium;
- a second track group having a second track width on said storage medium;
- a first address assigning means for assigning logical block addresses to said first track group;
- and
- a second address assigning means for assigning logical block addresses to said second track group.
A data writing method for a disk drive comprising a storage medium that has a first track group having a first track width and a second track group having a second track width, a first address assigning means for assigning logical block addresses to said first track group, and a second address assigning means for assigning logical block addresses to said second track group, wherein
- at the time of making a file with a file name beginning or ending with a specific prefix or a specific suffix, the area for storing the contents portion of said file is secured from only either one of said first track group or said second track group.
Dependencies are inferred from the claim text.