Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Patent
1997-03-14
1999-01-12
Swann, Tod R.
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
711117, 711171, 711173, G06F 1208
Patent
active
058600833
ABSTRACT:
In a data storage system using a flash memory unit and an HDD, the storage area of the flash memory unit is logically divided into a permanent storage area, a non-volatile cache area, which are used as cache memory areas of the HDD, and a high-speed access area. These divided areas are individually managed. The permanent storage area stores data which is used frequently for a relatively long time period. The non-volatile cache area is used as an ordinary cache memory area in which data, which is updated relatively frequently, is stored. The high-speed access area is a storage area to be used by, e.g. an operating system (OS) of a host system. For example, a swap file, which needs to be accessed at high speed, is shifted into the high-speed access area.
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Kabushiki Kaisha Toshiba
King , Jr. Conley B.
Swann Tod R.
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