Warm standby in hierarchically structured process-control programs

Author

Chen, Ing-Ray ; Bastani, Farokh B.

Author_Institution

Inst. of Inf. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

20

Issue

8

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

658

Lastpage

663

Abstract

We classify standby redundancy design space in process-control programs into the following three categories: cold standby, warm standby, and hot standby. Design parameters of warm standby are identified and the reliability of a system using warm standby is evaluated and compared with that of hot standby. Our analysis indicates that the warm standby scheme is particularly suitable for long-lived unmaintainable systems, especially those operating in harsh environments where burst hardware failures are possible. The feasibility of warm standby is demonstrated with a simulated chemical batch reactor system

Keywords

computer integrated manufacturing; fault tolerant computing; process computer control; redundancy; software maintenance; software reliability; burst hardware failures; cold standby; hierarchically structured process-control programs; hot standby; long-lived unmaintainable systems; process-control programs; simulated chemical batch reactor system; standby redundancy design space; system reliability; warm standby; Circuit faults; Control systems; Costs; Delay effects; Fault tolerance; Hardware; Process control; Process design; Real time systems; Redundancy;

fLanguage

English

Journal_Title

Software Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0098-5589

Type

jour

DOI

10.1109/32.310674

Filename

310674