why doesn't network disconnection cause vmware high availability to move VMs?
Posted on 2011-10-19
Here is the scenario: we have 3 ESX 4.1 hosts all connected to a SAN with high availability enabled (we do not have DRS). There is one VM on each host for testing purposes. Each host has 3 networks currently set up: one for the management network (has vmkernel port, vmotion enabled)), one for the iSCSI connections (vmkernel ports) and one for the LAN connections for the VMs (no vmkernel ports). Let's called them respectively mgmt-net, san-net, server-net.
The mgmt-net and server-net are physically connection to the same LAN and switch. When I reboot one of the hosts without going into maintenance mode or disconnect the network cable for the NIC the mgmt-net is on, HA kicks in and moves all VMs to an available host. That works great.
Here is the issue: if I disconnect the network cables for the NICs being used by server-net, it doesn't do anything. It just reports a disconnection and HA doesn't move the VMs to a different host. What am I doing wrong?