Disabling host monitoring
Host monitoring is generally disabled during network maintenance activities that would affect the host's management network connectivity. This is done to prevent unnecessary triggering of the host isolation response configured for the HA cluster. Host monitoring can be disabled by editing the cluster settings.
How to do it...
The following procedure explains how to disable host monitoring:
From the vCenter's Home inventory, navigate to the Hosts and Clusters view.
Select the cluster and navigate to Manage | Settings | vSphere HA, and click on Edit.
Deselect the Enable Host Monitoring checkbox, and click on OK.
The runtime information for HA should now show the Host Monitoring value as Disabled.
How it works...
Disabling Host Monitoring will not remove the HA agents from the ESXi host, hence HA will still be able to detect a host failure, but it will not restart the VMs from the failed host.