METHOD FOR RESTORING AND MAINTAINING SOLID-STATE DRIVE PERFORMANCE
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United States of America Patent
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N/A
Issued Date -
May 19, 2011
app pub date -
Nov 12, 2010
filing date -
Nov 19, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of maintaining a solid-state drive so that free space within memory blocks of the drive becomes free usable space to the drive. The drive comprises cells organized in pages that are organized in memory blocks in which at least user files are stored. A defragmentation utility is executed to cause at least some of the memory blocks that are partially filled with data and contain file fragments to be combined or aligned and to cause at least some of the memory blocks that contain only invalid data to be combined or aligned. A block consolidation utility is then executed to eliminate at least some of the partially-filled blocks by consolidating the file fragments into a fewer number of the memory blocks. The consolidation utility also increases the number of memory blocks that contain only invalid memory. All of the memory blocks containing only invalid data are then erased.
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