Multiple processor system having software for selecting shared c

Details Multiple processor system having software for selecting shared c Multiple processor system having software for selecting shared c

1992-03-30

1996-02-20

Lee, Thomas C.

Boots, shoes, and leggings

395440, 39520008, 3642281, 36424341, 3642463, 3642437, G06F 1202, G06F 1300

Patent

active

054936683

ABSTRACT:
A high-speed cache is shared by a plurality of independently-operating data systems in a multi-system data sharing complex. Each data system has access both to the high-speed cache and the lower-speed, secondary storage for obtaining and storing data. Management logic and the high-speed cache assures that a block of data obtained form the cache for entry into the secondary storage will be consistent with the version of the block of data in the shared cache with non-blocking serialization allowing access to a changed version in the cache while castout is being performed. Castout classes are provided to facilitate efficient movement from the shared cache to DASD.

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patent: 5142627 (1992-08-01), Elliot et al.
patent: 5163148 (1992-11-01), Walls
patent: 5386546 (1995-01-01), Hamaguchi

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