VMware HA
VMware HA supports high availability for
virtual machines by pooling the hosts they reside on into a cluster. If one
host fails, its virtual machines move to a different host in the cluster.
VMware HA monitors ESXi hosts
and in the event of host failure, migrates virtual machines to hosts with
capacity. When you add new virtual machines to a VMware HA cluster, VMware HA
checks whether enough capacity to power on that virtual machine is available on
that host or a different host.
See
Managing HA Clusters.