Method for mapping around defective sectors in a disc drive

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record

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360 49, G11B 1518, G11B 509

Patent

active

049243314

ABSTRACT:
The defect list, as supplied by the manufacturer, is stored on the outer tracks of the disk. It is merged with the user supplied media defect list during formatting and used to flag defective sectors. During initialization the merged defect list is loaded into a section of dynamic memory so that it is accessible during seeking of a particular address.

REFERENCES:
patent: 4214280 (1980-07-01), Halfhill et al.

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