Compute Element Start/Stop
All of the services and cron jobs are enabled/disabled and started/stopped by the vdt-control command. For production you'll probably want a scrit in /etc/init.d to start and stop the VDT services. Some usefull args are below.
vdt-control --list # list all services vdt-control --off # shutoff all services vdt-control --off gridftp # shutoff only gridftp vdt-control --on # start all services vdt-control --on gridftp # start only gridftp vdt-control --disable gridftp # disable gridftp vdt-control --enable gridftp # enable gridftp