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File management system for devices containing solid-state media

  • US 9,507,538 B2
  • Filed: 06/15/2015
  • Issued: 11/29/2016
  • Est. Priority Date: 11/04/2009
  • Status: Active Grant
First Claim
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1. A device comprising:

  • at least one non-volatile storage medium comprising a plurality of data blocks;

    a file management system stored on the at least one non-volatile storage medium, the file management system comprising;

    a plurality of logical block address extent entries configured to associate with data files stored in the data blocks; and

    a plurality of descriptor entries configured to associate with the data blocks, wherein each of the plurality of descriptor entries references one of the plurality of logical block address extent entries, and wherein the plurality of descriptor entries are configured to organize the data blocks into separate logical groups, and wherein each of the plurality of descriptor entries comprises descriptor files that include information pertaining to a respective one of the plurality of data blocks and information for grouping data blocks of the plurality of data blocks, and wherein a first one of the descriptor files includes information relating to a current state of the respective data block, and wherein the current state of the respective data block is indicative of one of the separate logical groups to which the descriptor entry and the respective data block belong; and

    at least one controller configured to manage operations with the at least one non-volatile storage medium based at least in part on the file management system.

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