[Rdo-list] how to let cinder not in control node

Hi in the past , I can setting different role in different node, like cinder, nagios in different node. Now I try the newest packstack openstack-packstack.noarch 2014.1.1-0.21.dev1157.el6 @icehouse and found the answer file have change, many HOST can not setting, like cinder . why? -- Shake Chen