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VMware vSphere 5.0 Evaluation Guide –
Volume One
Host Isolation
Host isolation occurs when a host loses the ability to communicate to other hosts within the cluster through the
management network, and also loses the ability to ping the default isolation address. The following will
demonstrate how to create this situation and induce the default actions that will be taken by VMware HA.
Figure 28.
Identifying a Host to Be Isolated
First, you want to identify a host that will be isolated. For this example, host tm-pod01-esx03.tmsb.local has
been chosen. You can verify that it is currently acting as a slave within the cluster.
Figure 29.
Identifying Virtual Machines on tm-pod01-esx03 .tmsb .local
Now identify the virtual machines that are currently online on this host. These are the virtual machines that will
be affected by the isolation response performed after the fault is inserted.
