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Microsoft Hyper-V Cluster Design by Eric Siron

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Cluster responses to failures

As the name indicates, the purpose of Microsoft Failover Clustering is to provide failover capabilities. Whenever the cluster service on a node is not reachable within a five second window, a failover event is triggered. There are two ways for a node to become unavailable. The first is a simple crash. This could be a blue-screen error or a power outage. The second is network isolation. In this state, the host is still up, but it is not available.

Another failover trigger is the failure of a monitored service, as described in Chapter 10, Maintaining and Monitoring a Hyper-V Server Cluster. In this case, the cluster's first response is to try to restart the guest on the same node. Its second response is to move it to ...

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