Suppress Configuration Issues and Warnings Alerts after enabling vSphere HA in a VMware vSphere Cluster

You may have noticed that after Turning On vSphere HA in Cluster settings from the  Sphere Client that a Configuration Issues warning yellow box may appear on the Summary page of ALL host ESXi servers in the vSphere Cluster.

VMware vSphere HA will still function correctly, the configuration issue, is warning that there is only one physical network interface connected to the virtual vswitch which has the service console (ESX) or management network interface (ESXi) connected.

These configuration issues and warnings alert triangles can be suppressed as follows

Using the VMware vSphere Client, login and connect to the VMware vSphere vCenter server. Use the IP address or hostname of the VMware vSphere vCenter server, and use the vCenter Server Administrator username and password credentials.
  • Using the VMware vSphere Client, Login and Connect to the VMware vSphere vCenter Server
 Select the Cluster in Inventory > Hosts and Clusters, Right Click the Cluster in the right-hand panel, and select Edit Settings
  • Right Click the Cluster in the right-hand panel, and select Edit Settings

The vSphere Cluster settings dialogue box will be opened.

  • vSphere Cluster Settings
 Select vSphere HA and click Advanced Options, bottom right
  • vSphere HA Advanced Options

The Advanced Options (vSphere HA) dialogue box will open.

 To suppress the configuration issues box and warning triangles, the das.ignoreRedundantNetWarning needs to be added with a value of TRUE.

Click the left-hand column under Option, and enter das.ignoreRedundantNetWarning

  • enter das.ignoreRedundantNetWarning

Click the right-hand column under Value, and enter TRUE.

  • enter TRUE

Click OK to return to Cluster Settings.

Click Cluster Features and remove the Tick from Turn On vSphere HA.

This action will disable HA on ALL ESX/ESXi hosts in the cluster. Please note I would recommend any changes to a production environment be carried out and schedule out of core SLA hours.

  • Turn OFF HA

Click OK. The HA cluster will be reconfigured, this will take a few seconds.

Select the Cluster in Inventory > Hosts and Clusters, Right Click the Cluster in the right-hand panel, and select Edit Settings
  • Right Click the Cluster in the right-hand panel, and select Edit Settings

The vSphere Cluster settings dialogue box will be opened.

Select Turn ON vSphere HA (by clicking and ensuring a Tick appears in the box)

Click OK.

The HA cluster will be reconfigured, this will take a few seconds (test with five hosts took 40 seconds).

  • HA Configuration Issues Suppressed

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