nixCraft

I have been using RHEL-5 kernel 2.6.18.8.
I am using two Linux servers named web03 and web04 which is connected to Two brocade switches which are furhter connected to Dell EMC CX300 array.
We are implementing cluster in these two linux servers and we are using system-config-cluster utility. These two servers have two NICs cards each , named private (network 192.168.0.0)and public (172.16.0.0).Public network connected to EMC storage whereas private network connected to cross cable( one NIC card of linux server is connected through cross cable to other linux server which is having IP 192.168.1.18 and 192.168.1.19).here is the configuration of my /etc/cluster/cluster.conf file.



































The problem is :
1)whenever i start cman services , it hangs on starting and stopping of fencing daemon.and when i check /var/log/messages , it displays:
web03 fenced [9255]: fence "web04" failed
webb03 fenced [9255]:fencing node :"web04"
I once added web04 in cluster ,didnot work, so I delete cluster.conf file and reconfigure cluster.conf.
Why /var/log/message file shows fencing error in log files when web04 is not in cluster.conf file.
I think there are some other configuration file from where web04 is bound to fencing.
From where can I delete web04 entry so that fencing is done ignoring web04 server.
2) whenever I run system-config-cluster command , it displays the message as :
Because this node is not currently part of cluster, the management tab for this applicaiton is not avaiable.
and when i check log file, again same error message:
web03 fenced [9255]: fence "web04" failed
webb03 fenced [9255]:fencing node :"web04"

why is this so???
All services are running file such as
service rgmanager restart
service clvmd restart
Please clarify these issues!!
Thanx