cman

<cluster name="example" config_version="1">
 <cman two_node="1" expected_votes="1">
 </cman>
 <clusternodes>
  <clusternode name="one" votes="1">
   <fence>
    <method name="single">
     <device name="human" ipaddr="192.168.2.1"/>
    </method>
   </fence>
  </clusternode>
  <clusternode name="two" votes="1">
   <fence>
    <method name="single">
     <device name="human" ipaddr="192.168.2.2"/>
    </method>
   </fence>
  </clusternode>
 </clusternodes>
 <fencedevices>
  <fencedevice name="human" agent="fence_manual"/>
 </fencedevices>
</cluster>

<cluster name="example" config_version="1">
         <clusternodes>
           <clusternode name="one" votes="1">
             <fence>
               <method name="single">
                 <device name="human" ipaddr="192.168.2.1"/>
               </method>
             </fence>
           </clusternode>
           <clusternode name="two" votes="1">
             <fence>
               <method name="single">
                 <device name="human" ipaddr="192.168.2.2"/>
               </method>
             </fence>
           </clusternode>
           <clusternode name="three" votes="1">
             <fence>
               <method name="single">
                 <device name="human" ipaddr="192.168.2.3"/>
               </method>
             </fence>
           </clusternode>
         </clusternodes>

         <fencedevices>
           <fencedevice name="human" agent="fence_manual"/>
         </fencedevices>
</cluster>