Title :
Service Availability of Systems with Failure Prevention
Author :
Salfner, Felix ; Wolter, Katinka
Author_Institution :
Int. Comput. Sci. Inst., Berkeley, CA
Abstract :
In this paper we present a queueing model for service availability formulated as a Petri net. We define a metric for service availability and show how it can be estimated from the model. Assuming that a failure avoidance mechanism is present, we analyze the distribution of time-to-failure. Finally, we show in experiments how service availability depends on queue length, utilization and failure prevention and how it relates to steady-state system availability.
Keywords :
Petri nets; queueing theory; software fault tolerance; Petri net; failure avoidance mechanism; failure prevention; queueing model; service availability; steady-state system availability; time-to-failure distribution; Availability; Checkpointing; Computer science; Exponential distribution; Failure analysis; Preventive maintenance; Software maintenance; Steady-state; Stochastic processes; USA Councils; Petri net; failure prevention; queueing model; service availability;
Conference_Titel :
Asia-Pacific Services Computing Conference, 2008. APSCC '08. IEEE
Conference_Location :
Yilan
Print_ISBN :
978-0-7695-3473-2
Electronic_ISBN :
978-0-7695-3473-2
DOI :
10.1109/APSCC.2008.164
