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Network redundancy message when configuring VMware High Availability in vCenter Server (1004700)

Symptoms

When configuring the VMware High Availability (HA) in a vCenter Server, you see the message:

Host <xxx> currently has no management network redundancy

Cause

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

Resolution

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 or management network vSwitch configured with NIC teaming, and that you keep both as active adapters, or place one in standby. For more information, see NIC teaming in ESXi and ESX (1004088).

Alternatively, you can add a second service console on a different vSwitch and subnet. To suppress this message on ESXi and 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.

If the warning appears even when there are two available uplinks for the vSwitch hosting the Service Console/VMkernel Port Management Network, providing a redundancy, see ESX/ESXi host displays warning message when test condition is false (2008602).

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, type 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.

To set das.ignoreRedundantNetWarning to true in the vSphere 5.1 Web Client:

  1. From the vSphere Web Client, right click on the cluster.
  2. Click on the Manage tab for the cluster, then under Settings click vSphere HA.
  3. Click on the Edit button in the top right corner.
  4. Expand the Advanced Options section, and click Add.
  5. In the Options column, type das.ignoreRedundantNetWarning.
  6. In the Value column, type true.
  7. Click OK.
  8. Right-click the host and click Reconfigure for vSphere HA.

Additional Information

For more information on Service Console redundancy, see Service Console redundancy for VMware High Availability (1002641).

See Also

This Article Replaces

1017071, 1004376, 1004909, 1004612, 1005183, 1007478

Update History

09/25/2012 - Changed service console to service console/management network 11/14/2013 - Added ESXi 5.5 and vCenter Server 5.5 to Product Versions.

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