Background read scanning with defect reallocation
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United States of America Patent
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Jun 25, 2002
Grant Date -
N/A
app pub date -
Feb 26, 1999
filing date -
Feb 26, 1999
priority date (Note) -
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Abstract
A method, apparatus and computer system for correcting errors and defects in a storage device. The storage device includes media for storing data. A periodic read scan is performed to test the data. If a repeatable error is found, the data is moved to a new sector from a pool of available sectors. Defects are counted and identified in a defect list for reporting to the host. The storage device is scannable is small segments to minimize impact on performance.
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