Disk based disk cache interfacing system and method

Details Disk based disk cache interfacing system and method Disk based disk cache interfacing system and method

1995-12-29

1998-09-08

Palys, Joseph

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

711114, 711113, 711134, 711136, G06F 1100

Patent

active

058057870

ABSTRACT:
Large numbers of relatively small (e.g., 1.8" or smaller) off-the-shelf disk drives are controlled to maximize the highest throughput performance at the least cost between a host computer and a mass storage subsystem. Host data is stored redundantly so as to form a cache. The controller recognizes data contained in its associated disk cache so as to produce that data to a requesting host with minimum delay. Data not in the disk cache as well as write commands are transferred to the controller of a mass storage subsystem with no substantial delay.

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