Read request selection system for redundant storage

Details Read request selection system for redundant storage Read request selection system for redundant storage

1977-06-13

1980-02-05

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 1300

Patent

active

041875389

ABSTRACT:
There is provided, in accordance with the present invention, apparatus comprising a shared random access memory in which is stored requests for access to data in a bulk memory unit. The data being stored in redundant storage areas and the requests stored in the RAM include the address of the redundant data. Means are provided for determining if that data request is already in progress through one of the redundant addresses. The first of the addresses accessed causes the others to be blocked to prevent multiple accessing of the same data. The checking and selection is accomplished by high speed logic circuitry.

REFERENCES:
patent: 3568160 (1971-03-01), Talarczyk
patent: 3921145 (1975-11-01), Emm et al.
patent: 4065809 (1977-12-01), Matsumoto

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