Effect of fault tolerance on response time-analysis of the primary site approach

Author

Huang, Yennun ; Jalote, Pankaj

Author_Institution

AT&T Bell Lab., Murray Hill, NJ, USA

Volume

41

Issue

4

fYear

1992

fDate

4/1/1992 12:00:00 AM

Firstpage

420

Lastpage

428

Abstract

The effect of the primary site approach for fault tolerance on the response time is studied. In the primary site approach, the service to be made fault tolerant is replicated at many nodes, one of which is designated as primary and the others as backups. All the requests for operations on the data object are sent to the primary site. The primary fails, one of the backups takes over as primary. The primary site periodically checkpoints its state on the backups. An analytical model for studying the average response time of the primary site system and analyzing the effects of the checkpointing frequency and the degree of replication on the response time is presented. This model is used to compare the response time of the system to that of a system without any fault tolerance

Keywords

fault tolerant computing; analytical model; backups; checkpointing frequency; fault tolerance; primary site approach; primary site system; response time; Analytical models; Availability; Checkpointing; Computer science; Delay; Fault tolerance; Fault tolerant systems; Frequency; Maintenance engineering; Real time systems;

fLanguage

English

Journal_Title

Computers, IEEE Transactions on

Publisher

ieee

ISSN

0018-9340

Type

jour

DOI

10.1109/12.135555

Filename

135555