<pre>Hi,<br><br>We have two RHEL5.1 boxes installed sharing a<br>single iscsi emc2 SAN, whitout fence devices. System is configured<br>as a high-availability system of xen guest. <br><br>One of the most repeating problems are fence_tool related.<br>
<br> # service cman start<br> Starting cluster:<br> Loading modules... done<br> Mounting configfs... done<br> Starting ccsd... done<br> Starting cman... done<br> Starting daemons... done<br> Starting fencing... fence_tool: can't communicate with fenced -1<br>
<br> # fenced -D<br> 1204556546 cman_init error 0 111<br><br> # clustat<br> CMAN is not running.<br> <br> # cman_tool join<br> <br> # clustat<br> msg_open: Connection refused<br> Member Status: Quorate<br> Member Name ID Status<br>
------ ---- ---- ------<br> yoda1 1 Online, Local<br> yoda2 2 Offline<br><br>Sometimes this problem gets solved if the two machines are rebooted at<br>
the same time. But in the current HA configuration, I cannot guarantee<br>two systems will be rebooted at the same time for every problem we<br>face. This is my config file:<br><br>###################################cluster.conf####################################<br>
<br><?xml version="1.0"?><br><cluster alias="yoda-cl" config_version="2" name="yoda-cl"><br> <fence_daemon clean_start="0" post_fail_delay="0" post_join_delay="3"/><br>
<clusternodes><br> <clusternode name="yoda2" nodeid="1" votes="1"><br> <fence/><br> </clusternode><br> <clusternode name="yoda1" nodeid="2" votes="1"><br>
<fence/><br> </clusternode><br> </clusternodes><br> <cman expected_votes="1" two_node="1"/><br> <rm><br> <failoverdomains/><br>
<resources/><br> </rm><br> <fencedevices/><br></cluster><br>###################################cluster.conf####################################
<br>Regards.<br></pre>