Serviceguard - Change node ip address

domingo, 29 de julho de 2012

**In this situation we are changing just the ip, the subnet stil is the same**

Backup configuration files:

/etc/hosts
/etc/rc.config.d/netconf
/etc/cmcluster/

Move the package(s) to another node
# cmhaltpkg -v <package>
# cmrunpkg -v -n NODE <package>

Remove node from all packages

Run cmapplyconf (or send the configuration files for others nodes manualy)

Stop the node
# cmhaltnode -v <node>

Remove node from cluster configuration

Apply new cluster configuration

Change IP on node
/etc/rc.config.d/netconf
/etc/hosts
Restart the net deamon for  apply the new network configuration
# /sbin/init.d/net stop
# /sbin/inti.d/net start

Add node to cluster
The bellow link is another post showing how to include a new node in the cluster running.
http://hp-ux-br.blogspot.com.br/2012/05/adding-new-node-in-running-cluster.html

Apply cluster configuration

Start the node again
# cmrunnode -v <node>

Add node to all relevant packages

Apply package configuration

Move package(s) back to node
# cmrunpkg -v -n NODE <package>
# cmhaltpkg -v <package>

Check cluster status
# cmviewcl -v