Installation and Upgrade Guides › SiteMinder Upgrade Guide › Upgrading from CA SiteMinder® r12.x › How the r12.x Migration Works

How the r12.x Migration Works

To migrate a CA SiteMinder® deployment with multiple Policy Servers and Web Agents, remove one of the Policy Servers and Web Agents from the CA SiteMinder® environment. While these components are being upgraded, the remaining Policy Servers and Web Agents continue to protect your resources.

Continue removing and upgrading CA SiteMinder® components until all components are upgraded or operating in mixed–mode compatibility.

The following figures illustrate a simple r12.x environment and detail the order in which existing components are upgraded.

Note: Each figure depicts a single policy/key store. Your environment can use separate policy and key stores.

1. In stage one, an r12.x Policy Server is upgraded. The 12.51 Policy Server operates in compatibility mode. Consider the following items:
   • The r12.x Web Agents continue to communicate with the 12.51 Policy Server.
   • The 12.51 Policy Server continues to communicate with the r12.x policy and key store.
   • The r12.x Policy Server continues to communicate with the r12.x policy and key store.
   • If an r12.x Administrative UI is configured with the 12.51 Policy Server, the Administrative UI continues to communicate with the Policy Server to manage objects in the r12.x policy store.
   • If an r12.x Report Server is configured with the 12.51 Policy Server, the Report Server continues to create reports.
2. In stage two, an r12.x Web Agent is upgraded to 12.51.
   • The r12.x Web Agent continues to communicate with the r12.x and the 12.51 Policy Server.
   • The 12.51 Web Agent only communicates with the 12.51 Policy Server.

     Note: You cannot configure a new 12.51 agent with an 12.51 Policy Server until the policy store is upgraded to 12.51.

3. In stage three, the remaining Policy Server is upgraded to 12.51. The 12.51 Policy Servers operate in compatibility mode with the r12.x policy and key store.

   

4. In stage four, the r12.x policy and key store is upgraded to 12.51.
5. In stage five, the Administrative UI is upgraded.
6. In stage six, the r12.x Report Server is uninstalled. An 12.51 Report Server is installed, registered with the Policy Server, and connected to the Administrative UI.

   Note: If you installed and configured an r12.0 SP3 cr4 or higher Report Server, this step is not required.