Disk drive biasing refresh zone counters based on write commands
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United States of America Patent
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Jul 5, 2011
Grant Date -
Feb 3, 2011
app pub date -
Jul 31, 2009
filing date -
Jul 31, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A disk drive is disclosed comprising a disk comprising a plurality of tracks, and a head actuated over the disk. A plurality of refresh zones are defined, wherein each refresh zone corresponds to a plurality of the tracks. Data is written to a first refresh zone, and a first zone counter is updated for a second refresh zone at a first rate. Data is written to a third refresh zone, and the first zone counter is updated for the second refresh zone at a second rate different than the first rate.
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