Storage device cache

Details Storage device cache Storage device cache

2011-05-17

2011-05-17

Tsai, Sheng-Jen (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711SE12021

Reexamination Certificate

active

07945728

ABSTRACT:
A hard disk drive (HDD) comprises nonvolatile semiconductor (NVS) memory, a life monitor module, and a hard disk controller (HDC) module. The life monitor module evaluates cumulative usage of the NVS memory and selectively generates a usage signal based upon the evaluation. The hard disk controller (HDC) module selectively caches data in the NVS memory and suspends caching of at least selected data in the NVS memory based upon the usage signal.

REFERENCES:
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patent: 2003/0189868 (2003-10-01), Riesenman et al.
patent: 2005/0108707 (2005-05-01), Taylor et al.
patent: 2005/0246487 (2005-11-01), Ergan et al.
patent: 2007/0260811 (2007-11-01), Merry et al.

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