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Discardable files

  • US 8,375,192 B2
  • Filed: 12/22/2009
  • Issued: 02/12/2013
  • Est. Priority Date: 12/16/2008
  • Status: Active Grant
First Claim
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1. A method for managing a storage device, the method comprising:

  • in a storage device operatively coupled to a host;

    receiving a request to store a first file in a storage area of the storage device, wherein the storage device contains a primary file allocation table (“

    FAT”

    ) and, in addition, a discardable FAT;

    marking the first file as discardable, the marking of the first file being done in a file system structure associated with the storage device;

    updating the primary FAT to associate a cluster chain that is allocated to the first file with the first file;

    updating the discardable FAT to reflect a physical location of the first file in the storage device; and

    managing the storage area of the storage device in accordance with the discardable FAT.

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