模块化数据中心网络结构寿命失效性能分析的Monte-Carlo方法
A Monte-Carlo Approach to Lifespan Failure Performance Analysis of the Network Fabric in Modular Data Centers
摘要：
数据中心已经从计算基础设施的被动元素发展成为任何ICT解决方案的主动核心部分。特别是，模块化数据中心（MDC）是一种很有前途的设计方法，可以提高数据中心的弹性，可以在偏远和荒凉的环境中部署ICT基础设施方面发挥关键作用，以便利用低温和水电和风电能力。这是因为模块化数据中心即使在缺乏持续的现场维护和支持的情况下也能够生存。数据中心最关键的部分是其网络结构，即使所有其他组件都功能齐全，也可能阻碍整个系统，假设已经执行了其他分析以确保底层基础设施和支持系统的可靠性。在这项工作中，一个完整的故障分析模块化数据中心使用故障模型的各种组件，包括服务器，交换机和链路使用建议的蒙特卡罗方法进行。所提出的蒙特卡罗方法，这是基于快照的概念，使我们能够有效地计算性能的设计沿其寿命甚至到终端阶段。为了显示所提出的方法的能力，各种网络拓扑结构，如FatTree，BCube，MDCube，以及它们的修改。针对拓扑参数，研究了每个拓扑设计在其组件出现故障时的性能和寿命。
英文摘要：
Data centers have been evolved from a passive element of compute infrastructure to become an active, core part of any ICT solution. In particular, modular data centers (MDCs), which are a promising design approach to improve resiliency of data centers, can play a key role in deploying ICT infrastructure in remote and inhospitable environments in order to take advantage of low temperatures and hydro- and wind-electric capabilities. This is because of capability of the modular data centers to survive even in lack of continuous on-site maintenance and support. The most critical part of a data center is its network fabric that could impede the whole system even if all other components are fully functional, assuming that other analyses has been already performed to ensure the reliability of the underlying infrastructure and support systems. In this work, a complete failure analysis of modular data centers using failure models of various components including servers, switches, and links is performed using a proposed Monte-Carlo approach. The proposed Monte-Carlo approach, which is based on the concept of snapshots, allows us to effectively calculate the performance of a design along its lifespan even up to the terminal stages. To show the capabilities of the proposed approach, various network topologies, such as FatTree, BCube, MDCube, and their modifications are considered. The performance and also the lifespan of each topology design in presence of failures of their components are studied against the topology parameters.
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