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首页> 外文期刊>International Journal Of Modelling & Simulation >A PERFORMANCE MODEL OF HIGHLY AVAILABLE MULTICOMPUTER SYSTEMS
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A PERFORMANCE MODEL OF HIGHLY AVAILABLE MULTICOMPUTER SYSTEMS

机译:高可用多计算机系统的性能模型

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Multicomputer are distributed memory systems in which independent computers are connected with each other by a network. Multicomputers are widely used in business and scientific applications. Due to their flexibility, scalability, and cost performance, multicomputer systems are considered preferable to multiprocessor systems. They are also gaining attraction in the area of Internet-based computing, in which delays or interruptions in client-server interactions may be equally costly to service providers and customers. Multicomputer systems attributed with high available (HA) solutions may be used to withstand service unavailability due to the web servers' failures. In this paper we investigate a Markov model-based approach to estimate the availability of multicomputer systems with and without HA. The availability is computed as a function of server failure rate and the number of surviving servers. This model can estimate the number of nodes needed for a required availability measure.
机译:多计算机是分布式存储系统,其中独立的计算机通过网络相互连接。多计算机广泛用于商业和科学应用。由于它们的灵活性,可伸缩性和成本效益,多计算机系统被认为比多处理器系统更可取。它们在基于Internet的计算领域也越来越有吸引力,在该领域中,客户端-服务器交互的延迟或中断可能对服务提供商和客户造成同等的代价。归因于高可用性(HA)解决方案的多计算机系统可用于承受由于Web服务器故障而导致的服务不可用性。在本文中,我们研究了一种基于马尔可夫模型的方法来估计具有和不具有HA的多计算机系统的可用性。可用性是根据服务器故障率和幸存服务器的数量来计算的。该模型可以估计所需的可用性度量所需的节点数。

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