Performing Health Check on VDS

Health Check allows vSphere to analyse the attributes of the Distributed Switch, and compare them to the attributes of the physical switch. It can be useful to highlight misconfiguration such as invalid MTU sizes, VLANs, NIC Teaming and failover. 

For instance an alarm can be raised when the Distribute Switch refers to a VLAN on a portgroup, which isn’t available at the physical layer. 

By default Health Check is not enabled

Enabling Health Check:

1. Select the Distributed Switch, and click the Manage Tab

2. In the Settings column, select Health check

3. click the Edit button to enable the feature.

Viewing Health Check Status:

1. Select the Distributed Switch, and click the Monitor tab

2. Select the Health Column

3. Problems will be flagged with a yellow exclamation mark on each affect host.