vSphere HA is a feature that's available in vSphere and is applied to a pool of monitored ESXi hosts. It allows you, in the case of host failure, to restart the virtual machines that are detected as down on another host within the cluster.
Objective 9.1 – Configure vSphere HA cluster features
Modify vSphere HA cluster settings
vSphere HA's responses to failure conditions on a cluster can be customized depending on your business requirements. In order to configure failures and responses, you must edit the cluster and enable the Enable Host Monitoring option, like so:
Figure 9.1: Configuration of the vSphere Availability parameters for the cluster
Here, you can configure the following parameters:
- Host Failure...