Method for mapping around defective sectors in a disc drive

Details Method for mapping around defective sectors in a disc drive Method for mapping around defective sectors in a disc drive

1985-11-20

1988-05-24

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 49, G11B 1518, G11B 509

Patent

active

047469986

ABSTRACT:
The defect list, as supplied by the manufacturer, is stored on the outer tracks of the disc. 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), Halhfill et al.
patent: 4405952 (1983-09-01), Slakmon
patent: 4558446 (1985-12-01), Banba et al.

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