IBM SG24-5131-00 manual Setup and Test Hacws

ordinary HACMP cluster, as it is described in Chapter 7 of the HACMP for AIX, Version 4.3: Installation Guide, SC23-4278.

Now the cluster environment has to be configured. Define a cluster ID and name for your HACWS cluster and define the two nodes to HACMP.

Adapters have to be added to your cluster definition as described before. You will have to add a boot adapter and a service adapter for both primary and backup cws. Now that the cluster topology is defined to HACMP, you can configure Network Modules as in the HACMP for AIX Installation Guide, SC23-4278, and synchronize the definitions across the two cluster nodes.

With the ssp.hacws filesets comes a predefined start- and stop-script, which has to be defined to HACMP as part of the application server definition, which in turn has to be included in a resource group.

Recommended settings for this resource group are:

Resource Group Name	[hacws_group1]
Node Relationship	[rotating]
Participating Node Names [“nodename of primary cws” “nodename of
	backup cws”]
Service IP label	at least the hostname of the primary cws
File System	the name of the file system, most probably
	/spdata
Volume Groups	the name of the shared volume group containing
	/spdata
Application Servers	the name you gave the application server before

9.1.6 Setup and Test HACWS

Both the primary and backup cws have to be addressable by their hostname, in order to finish the configuration and check that everything is in order. So, check if the primary cws can address the backup cws by its hostname and vice versa. If not, use the ifconfig command to temporarily set the interface to the hostname on each cws. Do NOT use smit chinet for this, since this would be a permanent change.

Run the command:

/usr/sbin/hacws/install_hacws -p primary_hostname -b backup_hostname -s

on the primary cws to set up HACWS with the 2 node names.

186 IBM Certification Study Guide AIX HACMP