Using external memory devices to improve system performance
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United States of America Patent
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Feb 10, 2009
Grant Date -
Apr 27, 2006
app pub date -
Oct 21, 2004
filing date -
Oct 21, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
The invention is directed towards a system and method that utilizes external memory devices to cache sectors from a rotating storage device (e.g., a hard drive) to improve system performance. When an external memory device (EMD) is plugged into the computing device or onto a network in which the computing device is connected, the system recognizes the EMD and populates the EMD with disk sectors. The system routes I/O read requests directed to the disk sector to the EMD cache instead of the actual disk sector. The use of EMDs increases performance and productivity on the computing device systems for a fraction of the cost of adding memory to the computing device.
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