Optimized placement policy for solid state storage devices
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United States of America Patent
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Mar 17, 2009
Grant Date -
Dec 13, 2007
app pub date -
Jun 8, 2006
filing date -
Jun 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A data storage system is provided comprising several flash arrays in a board and stacking these boards to attain a high-capacity solid state hard drive. A remap table is used to map all logical addresses from a host system to the actual physical addresses where data are stored. The assignments of these physical locations are done in such a way that the load of the system is evenly distributed to its available resources. This would ensure that the storage system will run at its utmost efficiency utilizing its resources properly. To achieve this, the system would make sure that the physical location of data be evenly distributed according to the current load of the system.
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