Migrating data that is subject to access by input/output devices
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United States of America Patent
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Mar 3, 2009
Grant Date -
Nov 8, 2007
app pub date -
Apr 25, 2006
filing date -
Apr 25, 2006
priority date (Note) -
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Abstract
A computer implemented method and system for migrating data accessible by input/output (I/O) devices using direct memory access. A request is received to migrate data. The data is migrated from a source page to a destination page in response to the request to migrate the data. Read data for the direct memory access are fetched from the source page. Write data for the direct memory access are stored in both the source page and the destination page.
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