International Business Machines Corporation

Steven Wayne Kerchberger

David Arnold Luick

William Paul Hovis

Jeffrey Douglas Brown

Kent Harold Haselhorst

Dwight A Gourneau

A memory architecture and method of partitioning a computer memory. The architecture includes a cache section, a setup table, and a compressed storage, all of which are partitioned from a computer memory. The cache section is used for storing uncompressed data and is a fast access memory for data which is frequently referenced. The compressed storage is used for storing compressed data. The setup table is used for specifying locations of compressed data stored within the compressed storage. A high speed uncompressed cache directory is coupled to the memory for determining if data is stored in the cache section or compressed storage and for locating data in the cache.

Compression architecture for system memory application

Multiple file transfers to and from a streaming tape device all performing one operation on a first file, and while simultaneously performing another, different operation on a second file. Streaming is maintained on multiple file transfers and the ability to save files by name, while maintaining streaming mode across file boundaries. This is accomplished by pre-processing the next files characteristics, while outputting a present file. Three data paths are utilized between a central processing unit, a file subsystem processor, and I/O devices.

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Rochester, MN, United States of America

Steven Wayne Kerchberger