Data management method for flash memory and storage system and controller using the same
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United States of America Patent
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Oct 23, 2012
Grant Date -
Dec 31, 2009
app pub date -
Sep 30, 2008
filing date -
Jun 26, 2008
priority date (Note) -
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Abstract
A data management method, a flash memory storage system and a controller using the same are provided. The data management method is used for accessing a flash memory of the flash memory storage system, wherein the flash memory includes a plurality of physical blocks and the physical blocks are grouped into a data area and a spare area. The data management method includes configuring a plurality of logical blocks for be accessed by a host. The data management method also includes dividing each physical block into a plurality of physical parts and mapping the logical blocks to the physical parts. The data management method further includes accessing the mapped physical parts according to the physical blocks to be accessed by the host. Accordingly, it is possible to increase the usage and the accessing speed of the physical blocks in the flash memory storage system.
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