Storage system using a flash memory partitioned with...

Details Storage system using a flash memory partitioned with... Storage system using a flash memory partitioned with...

2005-09-19

2009-11-03

Thomas, Shane M (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S156000, C711S163000, C711S173000

Reexamination Certificate

active

07613871

ABSTRACT:
Provided is a storage system including: a nonvolatile memory which stores and erases data for respective blocks; and a controller for inputting and outputting the data to and from the nonvolatile memory, wherein: the storage system has a storage area including: a rewritable area where a stored data can be erased; and a write-once area where the stored data cannot be erased; and the controller determines a block belonging to the rewritable area based on an attribute of the block, and performs a wear leveling process and a reclamation process only on the block determined as belonging to the rewritable area.

REFERENCES:
patent: 5479638 (1995-12-01), Assar et al.
patent: 7107389 (2006-09-01), Inagaki et al.
patent: 2003/0070034 (2003-04-01), Friedman et al.
patent: 2006/0069850 (2006-03-01), Rudelic
patent: 2007/0186033 (2007-08-01), Shinagawa et al.
patent: 05-027924 (1996-02-01), None
patent: WO 2005/031754 (2005-04-01), None

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