this host currently has no management network redundancy

Symptoms

 

messages : this host currently has no management network redundancy

 

When configuring the VMware High Availability (HA) in a vCenter Server, you see the message:
Host <xxx> currently has no management network redundancy.

Resolution

This message appears if the Service Console does not have network redundancy configured properly and can be safely ignored.

To prevent this message from appearing, and to comply with proper network redundancy, VMware recommends that you add a second vmnic to the service console/management network vSwitch configured with NIC teaming, keeping both as active adapters or placing one in standby. For more information, see NIC teaming in ESXi and ESX (1004088). Alternatively, add a second service console on a different vSwitch and subnet.

To suppress this message on ESXi/ESX hosts in the VMware High Availability (HA) cluster, or if the warning appears for a host already configured in a cluster, set the VMware HA advanced option das.ignoreRedundantNetWarning to true and reconfigure VMware HA on that host. This advanced option is available in VMware Virtual Center 2.5 Update 3 and later.

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

To set das.ignoreRedundantNetWarning to true:

1. From the VMware Infrastructure Client, right-click on the cluster and click Edit Settings.
2. Select vSphere HA and click Advanced Options.
3. In the Options column, enter das.ignoreRedundantNetWarning
4. In the Value column, enter true.
   
   Note: Steps 3 and 4 create a new option.
   
   
5. Click OK.
6. Right-click the host and click Reconfigure for vSphere HA. This reconfigures HA.

참고 : https://vCenter:9443/vsphere-client