Method and system for concurrent data transfer disk cache system

Details Method and system for concurrent data transfer disk cache system Method and system for concurrent data transfer disk cache system

1987-05-28

1989-01-24

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 1300

Patent

active

048004839

ABSTRACT:
The present invention relates to a computer system having a disk cache unit between a disk unit and the main storage unit. Ordinarily, the data transfer processing is carried out between the disk unit and the disk cache unit and between the disk cache unit and the main storage unit in this case under control of a director. The present invention is characterized by enabling these two data transfer operations to be executed in parallel and to prevent the director from becoming the bottleneck of the processing due to the concentrated processing requests. For this purpose, the present invention provides for a data transfer between the disk cache unit and a disk unit while a data transfer is taking place between the main storage unit and the disk cache unit.

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