Optimal design of SaaS infrastructure based on BDIM

To solve the optimization problem of SaaS infrastructure design, a methodology of minimizing financial cost is proposed based on BDIM. We firstly present an approach of calculating SaaS service availability. After that, in order to minimize the financial cost, an algorithm of seeking proper active and standby machines was given. At the end of this paper, the algorithm was applied to a SaaS platform, in this way we proved the efficiency of this algorithm.

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