Mapping of shingled magnetic recording media
First Claim
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1. A method for mapping out restricted areas on at least one disk of a data storage device (DSD), wherein the at least one disk includes overlapping tracks with a plurality of sectors for storing data, the method comprising:
- providing a first addressing for the plurality of sectors on the at least one disk;
detecting defective sectors of the plurality of sectors;
mapping out the defective sectors from the first addressing;
calculating a restricted area for a guardband of sectors for a shingle zone of overlapping tracks or for a write log; and
mapping out the restricted area from a second addressing.
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Abstract
Mapping out restricted areas on at least one disk of a data storage device. The at least one disk includes overlapping tracks with a plurality of sectors for storing data. A first addressing is provided for the plurality of sectors on the at least one disk. Defective sectors of the plurality of sectors are detected and mapped out from the first addressing. A restricted area is calculated including sectors of the plurality of sectors and the restricted area is mapped out from a second addressing.
566 Citations
15 Claims
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1. A method for mapping out restricted areas on at least one disk of a data storage device (DSD), wherein the at least one disk includes overlapping tracks with a plurality of sectors for storing data, the method comprising:
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providing a first addressing for the plurality of sectors on the at least one disk; detecting defective sectors of the plurality of sectors; mapping out the defective sectors from the first addressing; calculating a restricted area for a guardband of sectors for a shingle zone of overlapping tracks or for a write log; and mapping out the restricted area from a second addressing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A data storage device (DSD) comprising:
at least one disk including a plurality of overlapping tracks with a plurality of sectors for storing data; and a controller configured to; provide a first addressing for the plurality of sectors on the at least one disk; detect defective sectors of the plurality of sectors; map out the defective sectors from the first addressing; calculate a restricted area for a guardband of sectors for a shingle zone of overlapping tracks or for a write log; and map out the restricted area from a second addressing. - View Dependent Claims (8, 9, 10, 11)
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12. A non-transitory computer-readable medium storing computer-executable instructions for mapping out restricted areas on at least one disk of a data storage device (DSD), wherein the at least one disk includes overlapping tracks with a plurality of sectors for storing data, and wherein when the computer-executable instructions are executed by a processor or a controller, the computer-executable instructions cause the processor or the controller to:
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provide a first addressing for the plurality of sectors on the at least one disk; detect defective sectors of the plurality of sectors; map out the defective sectors from the first addressing; calculate a restricted area for a guardband of sectors for a shingle zone of overlapping tracks or for a write log; and map out the restricted area from a second addressing. - View Dependent Claims (13, 14, 15)
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Specification