Management of defect areas in recording media
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United States of America Patent
Stats
-
Dec 24, 1991
Grant Date -
N/A
app pub date -
Mar 31, 1989
filing date -
Mar 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved method of managing media defects in disk drives keeps an operating list of the tracks in the disk drive, and for each track enters on the list the number of good sectors (i.e., those free of defects) in that track. Thus the information on the operating list is sufficient for the disk drive microprocessor to avoid use of the defective sectors, each of which is labelled in its header as being defective. This method is compatible with SCSI and other common disk drive interfaces.
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