root@cloud:~# nova-manage service list
Binary           Host                                 Zone             Status     State Updated_At
nova-cert        cloud                                internal         enabled    :-)   2013-05-21 15:11:05
nova-consoleauth cloud                                internal         enabled    :-)   2013-05-21 15:10:59
nova-scheduler   cloud                                internal         enabled    :-)   2013-05-21 15:10:59
nova-compute     c01                                  nova             enabled    :-)   2013-05-21 15:11:04
nova-compute     c02                                  nova             enabled    XXX   2013-05-21 14:33:18
nova-conductor   cloud                                internal         enabled    :-)   2013-05-21 15:11:01