During times when a LAB is being used with limited resources it is not always possible to have 2 network cards on the ‘Management’ vSwitch. This is not an issue during LAB or test and dev but will always produce ‘host currently has no management network redundancy’ which just makes the display look messy. This can be resolved with the addition of an extra Advanced Option for HA.

The following explains how the error can be removed but please this is only to be used when not in a production environment which should always have a redundant ‘Management’ vSwitch.

Right click on the cluster to be modified
Select Edit Settings
Click on vSphere HA
At the bottom right hand corner click on Advanced Options
Copy the following das.ignoreRedundantNetWarning and paste it under Options with a Value of True
Click Ok
Select Cluster Features
Uncheck Turn On vSphere HA and click OK

Note: This will turn off HA on the cluster but this needs to happen for the Advanced Feature to take effect

Right click on the cluster to be modified
Select Edit Settings
Click on vSphere HA
Check Turn On vSphere HA and click OK

Note: This will turn on HA for the cluster and the error regards ‘host currently has no management network redundancy’ will be gone

By Paul Wood