Discardable files
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United States of America Patent
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Feb 12, 2013
Grant Date -
Jun 17, 2010
app pub date -
Dec 22, 2009
filing date -
Dec 16, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
The present application includes methods and system for managing a storage device. In one implementation, a storage allocator that is present in a host or a storage device receives a request to store a file in a storage area of the storage device. The storage allocator marks the file as discardable in a file system structure associated with the storage device and updates a primary file allocation table (“FAT”) to associate a cluster chain that is allocated to the file with the file. The storage allocator additionally updates a discardable FAT or a database to reflect a physical location of the file, or may generate one or more location files that store the physical location of the file. The storage allocator then manages the storage area device based on the FAT and a discardable FAT, database, or one more location files indicating the physical location of the file.
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