Method and apparatus for maintaining data on non-volatile...

Details Method and apparatus for maintaining data on non-volatile... Method and apparatus for maintaining data on non-volatile...

2004-07-21

2008-07-01

Thai, Tuan V. (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S103000, C707S793000

Reexamination Certificate

active

07395384

ABSTRACT:
Techniques for managing data in a non-volatile memory system (e.g., Flash Memory) are disclosed. A controller can use information relating to a host's filing system, which is stored by the host on non-volatile memory, to determine if one or more clusters (or sectors with clusters) are currently allocated. The controller can use the information relating to the host's filing system to ensure that one or more clusters (or one or more sectors within a cluster) are not copied from one location to another location in the memory during a garbage collection cycle. As a result, some unnecessary operations (e.g., copying data) which are conventionally performed can be avoided and system performance can be enhanced.

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