VMware: Network redundancy message when configuring VMware High Availability in vCenter

Symptoms

• If you configure VMware High Availability (HA) in VirtualCenter 2.5, you may see the message:
   
• This message does not appear to cause any failures.

Resolution

This message occurs with ESX 3.5/4 and vCenter 2.5/4. It indicates that the Service Console does not have network redundancy.

This message can be safely ignored.

You can, however, prevent this message by:

1. Adding a second vmnic to the service console vSwitch.
2. Adding a second Service console on a different vswitch and subnet.
3. Suppressing the message.
4. Edit the Cluster settings.
5. Click Advanced Options…
   
6. Add the option das.ignoreRedundantNetWarning
7. Change the value to true
8. Select a host and Reconfigure for VMware HA.
9. Repeat this for all hosts.

Note: If the warning continues to appear, disable and re-enable VMware High Availability in the cluster.  

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Daniel Buonocore

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