Storage system using flash memory modules logically grouped for wear-leveling and RAID
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United States of America Patent
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Aug 5, 2008
Grant Date -
Oct 4, 2007
app pub date -
May 26, 2006
filing date -
Mar 29, 2006
priority date (Note) -
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Abstract
A storage system using flash memories includes a storage controller and plural flash memory modules as storage media. Each flash memory module includes at least one flash memory chip and a memory controller for leveling erase counts of blocks belonging to the flash memory chip. The storage controller combines the plural flash memory modules into a first logical group, translates a first address used for accessing the flash memory modules belonging to the first logical group to a second address used for handling the first address in the storage controller, and combines the plural first logical groups into a second logical group.
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