Title :
Replication vs. Failure Prevention - How to Boost Service Availability?
Author :
Salfner, Felix ; Wolter, Katinka
Author_Institution :
Int. Comput. Sci. Inst., Berkeley, CA
Abstract :
The objective of this paper is to provide a first analysis of the effectiveness of simple server replication vs. failure prevention in non-high-availability applications. We analyze service availability for a system with N servers where each server is modeled as a finite queue subject to failures. A Petri net analysis suggests that service availability is most effectively improved by server duplication, but for further improvement the combination with failure prevention seems most effective.
Keywords :
Petri nets; software reliability; Petri net analysis; failure prevention; finite queue subject; server duplication; service availability; simple server replication; Application software; Availability; Computer science; Failure analysis; Hardware; Helium; Petri nets; Queueing analysis; Reliability engineering; Software reliability; Petri net; failure prevention; queueing model; server replication; service availability;
Conference_Titel :
Software Reliability Engineering, 2008. ISSRE 2008. 19th International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-0-7695-3405-3
Electronic_ISBN :
1071-9458
DOI :
10.1109/ISSRE.2008.52
