Data storage system comprising a mapping bridge for aligning host block size with physical block size of a data storage device
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United States of America Patent
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Aug 28, 2012
Grant Date -
May 19, 2011
app pub date -
Nov 13, 2009
filing date -
Nov 13, 2009
priority date (Note) -
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Abstract
A data storage system is disclosed comprising a non-volatile memory and a first interface operable to receive a write command from a host, the write command comprising a host write data block having a host logical block size. A block mapping bridge divides the host write data block into a plurality of transfer data blocks, wherein each transfer data block having a device logical block size smaller than the host logical block size. The transfer data blocks are transmitted through a second interface to control circuitry that accumulates the transfer data blocks into a physical data block having a device physical block size equal to a first integer multiple of the device logical block size, wherein the host logical block size is a second integer multiple of the device physical block size. The physical data block is then written to the non-volatile memory.
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