Configuring and running the z/OS® Load Balancing Advisor (LBA) function is a corequisite to implementing ADNR. The z/OS Load Balancing Advisor application communicates with ADNR and serves as ADNR's Global Workload Manager (GWM). The z/OS Load Balancing Agents communicate with the Advisor application and supply it, and ultimately ADNR, with information about the availability of the resources that ADNR has registered with the Advisor. Therefore, each system in the sysplex that contains resources that you want ADNR to manage must be running an Agent, and one system in the sysplex must be running an Advisor.
The Advisor views ADNR as a load balancer, although ADNR does not perform load balancing. ADNR merely uses the information to update the name servers based on the resource availability that the Advisor provides. Therefore, to enable ADNR to connect to the Advisor, the source IP address that ADNR uses to connect to the Advisor must be configured in the Advisor's lb_id_list statement, if AT-TLS is not used. For information about the lb_id_list statement, see z/OS Communications Server: IP Configuration Reference.
For complete information about configuring the Advisor and Agents, see Steps for configuring the z/OS Load Balancing Advisor. While following those steps, you should skip step 10 to start the TCP/IP stacks that the Advisor and Agents will use until completing the TCP/IP profile customization for those stacks, described in Step 11: Customize the TCP/IP profiles of the TCP/IP stacks on which ADNR and the LBA applications are to run (optional). You should also skip steps 13 and 14 in those steps, starting the Agents and Advisor, until you reach Step 13: Start the z/OS Load Balancing Advisor and Agent.