Service Availability: 5th International Service Availability by Roberto Baldoni, Stefano Fuligni, Massimo Mecella, Francesco

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By Roberto Baldoni, Stefano Fuligni, Massimo Mecella, Francesco Tortorelli (auth.), Takashi Nanya, Fumihiro Maruyama, András Pataricza, Miroslaw Malek (eds.)

This e-book constitutes the refereed lawsuits of the fifth foreign carrier Availability Symposium, ISAS 2008, held in Tokyo, Japan, in could 2008.

The 12 revised complete papers awarded including 2 keynote papers and a pair of tutorials have been conscientiously reviewed and chosen from 28 submissions. The papers are equipped in topical sections on company procedure dependability, software program carrier availability, carrier availability platform, and repair dependability analysis.

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Extra info for Service Availability: 5th International Service Availability Symposium, ISAS 2008 Tokyo, Japan, May 19-21, 2008 Proceedings

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Trivedi et al. as a true availability assurance. Monitoring and statistically inferring the observed availability is much more satisfactory assurance of availability. Off-line [16] and online [17] monitoring of deployed system availability and related metrics can be carried out. The major difficulty is the amount of time needed to get enough data to obtain statistically significant estimates of availability. 3 Recovery from Failures Caused by Mandelbugs Reactive recovery from failures caused by Mandelbugs has been used for some time in the context of operating system failures, where reboot is the mitigation method [8].

IEEE CS Press, Los Alamitos (2002) 42 T. Uemura and T. Dohi 16. : A method for modeling and quantifying the security attributes of intrusion tolerant systems. Performance Evaluation 56(1/4), 167–186 (2004) 17. : Model-based evaluation: from dependability to security. IEEE Transactions on Dependability and Secure Computing 1(1), 48–65 (2004) 18. : Experimenting with quantitative evaluation tools for monitoring operational security. IEEE Transactions on Software Engineering 25(5), 633–650 (1999) 19.

F. FI,M (t) is IHR under (A-1). If RA(0) > RA(∞), then t∗0 = 0 otherwise t∗0 → ∞. In this section, we optimized the three security measures for the ITDB and derived the optimal switching times for respective quantitative criteria. In the following section, we will give some numerical examples, and calculate the optimal switching policies and their associated security measures. 1 Numerical Illustrations Parameter Set We focus on both the system integrity and the rewarding availability, and treat the database management system with Oracle 9i server in [28].

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