# File lib/fog/compute/models/ecloud/server.rb, line 142
        def save
          if new_record?
            #Lame ...
            raise RuntimeError, "Should not be here"
          else
            if on?
              if @changed
                raise RuntimeError, "Can't save cpu, name or memory changes while the VM is on."
              end
            end
            connection.configure_vapp( href, _compose_vapp_data )
          end
          reset_tracking
        end