Fast data copy using a data copy track table
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United States of America Patent
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Jul 25, 2006
Grant Date -
Oct 2, 2003
app pub date -
Apr 1, 2002
filing date -
Apr 1, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A data structure, method, and computer system for fast data copy is provided which uses control structures in a data copy track table. The control structures include a physical location pointer, a physical location pointer flag, a forward track pointer and a backward source pointer. These control structures are used in an update-in-place architecture. Requests for source or target data updates do not require additional write cycles.
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