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NCU-HA: A Lightweight HA System for Kernel-Based Virtual Machine

机译:NCU-HA:用于基于内核的虚拟机的轻量级HA系统

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Failure prevention and protection are very critical issues nowadays. Although there are many commercial high availability (HA) solutions, they are expensive and do not support intelligent platform management interface (IPMI) that can improves failure detection efficiency. We present NCU-HA, a HA solution based on the open source project KVM(Kernel-based Virtual Machine). NCU-HA can be run on both low-cost personal computers (PCs) and IPMI-based servers. Moreover, to prevent single point of failure, we classify the nodes of the cluster into three roles: Primary node, Backup node, and General nodes. HA agent on those nodes will provide the functions depending on its role. We also define failure models and describe the recovery methods implemented in NCU-HA. Evaluation results show that our system can reach four nines (>99.99 %) availability on low cost PCs.
机译:如今,故障预防和保护是非常关键的问题。尽管有许多商业高可用性(HA)解决方案,但是它们很昂贵,并且不支持可以提高故障检测效率的智能平台管理接口(IPMI)。我们介绍NCU-HA,这是一个基于开源项目KVM(基于内核的虚拟机)的HA解决方案。 NCU-HA可以在低成本个人计算机(PC)和基于IPMI的服务器上运行。此外,为防止单点故障,我们将群集的节点分为三个角色:主节点,备份节点和常规节点。这些节点上的HA代理将根据其角色提供功能。我们还定义了故障模型并描述了在NCU-HA中实施的恢复方法。评估结果表明,我们的系统可以在低成本PC上达到四个九(99.99%)的可用性。

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