Refer to the sections below for some details about HA issues that may occur in a VMware environment.

Both Units Attempt to be the Active Unit

In some situations, when using HA in a VMware environment, both units might attempt to be the active unit and it may show the other unit as pacified (represented by a blue HA status square). This issue could be caused by the VMware switch configuration. To resolve this issue, select the options as outlined below on the virtual switch.

Ensure that MAC Address Changes and Forged Transmits are both selected. When they have been selected, reboot one of the LoadMasters.

The units should now be able to communicate properly. The correct state should now appear in the HA status icons.

Two Virtual LoadMasters on Different Hosts

Having two Virtual LoadMasters on different hosts can also pose problems on VMware.

To resolve these issues, select the Notify Switches check box in the NIC Teaming tab of the virtual switch and select No in the drop-down list.