VMs with Red Exclamation and no Alerts listed

Fix:

- restart vpxa on ESXi(services.sh restart)

- disconnect the host from Vcenter and connect it back after couple minutes.

- Use Refresh via PowerCLI.

 Here is the powercli script to do the reload into vcenter database without having to do the above (simple command)
Connect-VIServer <Vcenter_IP>
(Get-View -ViewType VirtualMachine)  | %{$_.reload()}