mysqldump -h <OLD_HOSTNAME> -u <USER> -p --databases <DB_NAME> > <DUMP_FILE>
mysql -h <NEW_HOSTNAME> -u <PRIV_USER> -p < <DUMP_FILE>
grant all on *.* to 'root'@'voms-rd02-21.cnaf.infn.it' identified by 'admin';
/opt/glite/sbin/voms-admin-configure --vo <VO_NAME> --dbhost <remote_host_name> upgrade