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Featured researches published by David J. Garcia.


dependable systems and networks | 2005

NonStop/spl reg/ advanced architecture

David L. Bernick; Bill Bruckert; Paul Del Vigna; David J. Garcia; Robert L. Jardine; Jim Klecka; Jim Smullen

For nearly 30 years the Hewlett Packard NonStop Enterprise Division (formerly Tandem Computers Inc.) has produced highly available, fault-tolerant, massively parallel NonStop computer systems. These vertically integrated systems use a proprietary operating system and specialized hardware for detecting, isolating, and recovering from faults. The NonStop advanced architecture (NSAA) uses dual or triple modular redundant fault-tolerant servers built from standard HP 4-way SMP Itanium/spl reg/2 server processor modules, memory boards, and power infrastructure. A unique synchronization mechanism allows fully compared operations from loosely synchronized processor modules. In addition, the NSAA improves system availability by additional hardware fault masking, and significantly lowers cost by leveraging existing high-volume Itanium server components.


Archive | 1996

Fail-fast, fail-functional, fault-tolerant multiprocessor system

Robert W. Horst; William Edward Baker; Randall G. Banton; John Michael Brown; William F. Bruckert; William Patterson Bunton; Gary F. Campbell; John Deane Coddington; Richard W. Cutts; Barry Lee Drexler; Harry Frank Elrod; Daniel L. Fowler; David J. Garcia; Paul N. Hintikka; Geoffrey I. Iswandhi; Douglas E. Jewett; Curtis Willard Jones; James Stevens Klecka; John C. Krause; Stephen G. Low; Susan Stone Meredith; Steven C. Meyers; David Paul Sonnier; William Joel Watson; Patricia L. Whiteside; Frank A. Williams; Linda Ellen Zalzala


Archive | 1995

Self-checked, lock step processor pairs

Robert W. Horst; David J. Garcia; William Patterson Bunton; William F. Bruckert; Daniel L. Fowler; Curtis Willard Jones; David Paul Sonnier; William Joel Watson; Frank A. Williams


Archive | 1995

Network message routing using routing table information and supplemental enable information for deadlock prevention

John C. Krause; David J. Garcia; Robert W. Horst; Geoffrey I. Iswandhi; David Paul Sonnier; William Joel Watson; Linda Ellen Zalzala


Archive | 1997

Method of data communication flow control in a data processing system using busy/ready commands

Robert W. Horst; William Edward Baker; Linda Ellen Zalzala; William Patterson Bunton; Richard W. Cutts; David J. Garcia; John C. Krause; Stephen G. Low; David Paul Sonnier; William Joel Watson; Patracia L. Whiteside


Archive | 1995

Interrupt message delivery identified by storage location of received interrupt data

Geoffrey I. Iswandhi; William Edward Baker; William Patterson Bunton; John Deane Coddington; Daniel L. Fowler; David J. Garcia; Paul N. Hintikka; Susan Stone Meredith; Stephen H. Miller; David Paul Sonnier; William Joel Watson; Frank A. Williams


Archive | 1995

Multiple processor system with standby sparing

Robert W. Horst; David J. Garcia


Archive | 1996

Detecting and isolating errors occurring in data communication in a multiple processor system

David J. Garcia; William Patterson Bunton; John Deane Coddington; John C. Krause; Susan Stone Meredith; David Paul Sonnier; William Joel Watson; Linda Ellen Zalzala


Archive | 1998

System and method for implementing multi-pathing data transfers in a system area network

David J. Garcia; Richard O. Larson


Archive | 1995

Storage access validation to data messages using partial storage address data indexed entries containing permissible address range validation for message source

Daniel L. Fowler; William Edward Baker; William Patterson Bunton; Gary F. Campbell; Richard W. Cutts; David J. Garcia; Paul N. Hintikka; Robert W. Horst; Geoffrey I. Iswandhi; David Paul Sonnier; William Joel Watson; Frank A. Williams

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