Storage device cache with phase change memory

Details Storage device cache with phase change memory Storage device cache with phase change memory

2011-05-03

2011-05-03

Peugh, Brian R (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

Reexamination Certificate

active

07937526

ABSTRACT:
A hard disk drive (HDD) is disclosed that includes a hard disk control (HDC) module and phase change memory (PCM). The PCM communicates with the HDC module and includes a plurality of memory cells that store data. Each of the memory cells includes a phase change material having N states. N is an integer greater than or equal to three. The HDC module caches at least one of user data and a computer program, which is stored by a magnetic storage medium that is associated with the HDD, in the PCM.

REFERENCES:
patent: 7782731 (2010-08-01), Henrichs
patent: 2009/0089500 (2009-04-01), Jiang

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