the options are more or less the same, its a rhel5.7 and it's a physical server actually. yes, probably fg will fix the problem, i haven't thougth about that, i simply applied the suggest options by netapp.
i guess using fg (that is the default) should fix (in this case the mount process should not fork and wait the nfs server to complete the operation)
Hi Luca, normally 20-30 seconds is the time that is needed by spanning tree to adjust the configuration and make the ports active.
You can ask to network admin to set the spanning tree protocol for ports in portfast (at least on cisco switch) or edge (on cisco nexus).
How is the bond configured? It's active passive or lacp ? In the case of simple active-passive you can also optimize probably more disabling other options on the network switches ... i remember that for our private oracle rac network there was a nonegotiate and also another option to let the port become active in a faster way.