ACM Transactions on Computer Systems (TOCS)
A sensitivity study of the clustering approach to workload modeling
Performance Evaluation
System performance with user behavior graphs
Performance Evaluation
A Unified Task-Based Dependability Model for Hypercube Computers
IEEE Transactions on Parallel and Distributed Systems
FTCS '99 Proceedings of the Twenty-Ninth Annual International Symposium on Fault-Tolerant Computing
Task Based Reliability for Large Systems: A Hierarchical Modeling Approach
ICPP '93 Proceedings of the 1993 International Conference on Parallel Processing - Volume 03
Performance Analysis Using Stochastic Petri Nets
IEEE Transactions on Computers
ICSOC '07 Proceedings of the 5th international conference on Service-Oriented Computing
Achieving and assuring high availability
ISAS'08 Proceedings of the 5th international conference on Service availability
Analytical availability assessment of IT services
ISAS'08 Proceedings of the 5th international conference on Service availability
Analysis of service availability for time-triggered rejuvenation policies
Journal of Systems and Software
Reliable service provisioning in converged multimedia network environment
Journal of Network and Computer Applications
A Petri net model for service availability in redundant computing systems
Winter Simulation Conference
Experience report: trading dependability, performance, and security through temporal decoupling
Proceedings of the 11th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
Making legacy services highly available with OpenAIS: an experience report
ISAS'06 Proceedings of the Third international conference on Service Availability
Configuration-Based service availability analysis for middleware managed applications
SAM'12 Proceedings of the 7th international conference on System Analysis and Modeling: theory and practice
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Service availability is an important consideration when carriers deploy new, packet-based services. In this paper we define the service availability based on user behavior, and derive formulas to compute service availability starting with the user behavior model and the system model. To automatically generate high fidelity user and system models, we use Stochastic Reward Nets (SRNs) and demonstrate how to combine the user SRN model and the system SRN model to analyze the service availability. We apply our approach to an SAF compliant media gateway controller (MGC) architecture in VoIP system. By building and numerically solving the combined SRN model of the MGC and the user, we compute the service availability, and evaluate various factors that influence it.