NonStop® advanced architecture

Author

Bernick, David ; Bruckert, Bill ; Vigna, P.D. ; Garcia, David ; Jardine, Robert ; Klecka, Jim ; Smullen, Jim

Author_Institution

Hewlett-Packard Co., Fort Collins, CO, USA

fYear

2005

fDate

28 June-1 July 2005

Firstpage

12

Lastpage

21

Abstract

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®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.

Keywords

fault tolerant computing; parallel architectures; synchronisation; Itanium server component; NonStop advanced architecture; fault-tolerant system; hardware fault masking; parallel NonStop computer system; synchronization; system availability; Clocks; Companies; Computer architecture; Concurrent computing; Costs; Hardware; Microprocessors; Operating systems; Redundancy; Synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Dependable Systems and Networks, 2005. DSN 2005. Proceedings. International Conference on

Print_ISBN

0-7695-2282-3

Type

conf

DOI

10.1109/DSN.2005.70

Filename

1467775