In my lab, when configuring VMware vSphere 5 HA/DRS in vCenter Server, you see the message under the “summary” tab in vSphere Client:

Configuration issues: This host currently has no management network redundancy

This message appears if VMKernel port does not have network redundancy configured at all or not configured properly. Normally, in production environment, to prevent this message from appearing, it is recommended that you should configure proper network redundancy for the management network (VMkernel port) by adding second vmnic to vSwitch.

To hide this warning message on ESXi hosts in the VMware HA/DRS cluster, set the VMware HA advanced option das.ignoreRedundantNetWarning to true and then reconfigure VMware HA on that host.

To set das.ignoreRedundantNetWarning to true:

  • From the VMware vSphere Client, right-click on the cluster where the host resides and click Edit Settings.
  • Select VMware HA and click Advanced Options.
  • In the Options column, enter das.ignoreRedundantNetWarning
  • In the Value column, enter true.
  • Click OK.
  • Reconfigure HA.

See screenshot below for a visual of where to find the “advanced options” in Cluster Settings.

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