Multiple rank hierarchical data storage system with data coheren

Details Multiple rank hierarchical data storage system with data coheren Multiple rank hierarchical data storage system with data coheren

1993-12-29

1995-11-28

Eng, David Y.

Boots, shoes, and leggings

3649642, 3642434, G06F 1300

Patent

active

054715822

ABSTRACT:
An extended, hierarchical storage system includes a main storage, an extended storage, and a work storage having a speed and capacity intermediate therebetween. Additionally, a relatively small, high-speed buffer storage is provided as an adjunct to a processor. The work storage implements a store-in mode and incorporates a flag representative of validity of data therein, which, in turn, impacts upon whether an update to lower ranking memory is necessary upon removal of data stored therein.

REFERENCES:
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patent: 4399503 (1983-08-01), Hawley
patent: 4464712 (1984-08-01), Fletcher
patent: 4476524 (1984-10-01), Brown et al.
patent: 4639862 (1987-01-01), Wada et al.
patent: 5307461 (1994-04-01), Kiriu
Akira Hattori et al., "Three-Level Hierarchical Storage System for Facom M-380/382", Sep. 1983, pp. 693-697.

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