Hot standby memory copy system

Details Hot standby memory copy system Hot standby memory copy system

1988-07-15

1992-06-16

Popek, Joseph A.

Boots, shoes, and leggings

364DIG1, 3642283, 364243, 36424341, 3642134, 364268, 3642683, 3642431, 371 101, G06F 1200

Patent

active

051230992

ABSTRACT:
Disclosed is an electronic exchange with a hot standby memory copy system including main storage devices that are duplexed wherein to improve the processing capacity of a central processing unit and make the best use of the speed of a cache memory, in an information processing apparatus provided with central processing units, main storage devices and cache memories all of which are duplexed, first-in first-out memories that are duplexed and connected to the central processing units, a unit for simultaneously writing data, when the central processing unit writes the data into the cache memory, into the first-in first-out memory, and a unit for writing, independently of an operation of the central processing unit, the contents of a currently used one of the first-in first-out memories into a standby one of the main storage devices are provided.

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European Search Report performed at The Hague on Jul. 16, 1990 by Examiner Sarasua Garcia L.

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