Disk drive refreshing zones in segments to sustain target throughput of host commands
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United States of America Patent
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May 17, 2011
Grant Date -
Jan 29, 2009
app pub date -
Jul 27, 2007
filing date -
Jul 27, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A disk drive is disclosed including a disk comprising a plurality of refresh zones, and a head actuated over the disk. The disk drive further comprises control circuitry for receiving access commands from a host. The control circuitry refreshes a refresh zone in a plurality of segments with an interval between each segment, and processes at least one of the access commands during the interval between at least two of the segments, wherein a size of each segment and the interval ensures an average throughput of access commands received from the host does not fall below a first threshold.
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