Installation and Upgrade Guides › SiteMinder Upgrade Guide › Upgrading from r6.x › How a Parallel Upgrade Works

How a Parallel Upgrade Works

You do not have to migrate an existing r6.x environment to r12.0 SP2. Rather, you can configure a parallel r12.0 SP2 environment beside an existing deployment.

The following figure illustrates a simple parallel upgrade and details:

• An r6.x environment that continues to protect existing resources.
• An r6.x Policy Server User Interface that is used to manage SiteMinder objects in the r6.x policy store.
• An r12.0 SP2 environment that protects new resources.
• An r12.0 SP2 Administrative UI that is used to manage SiteMinder objects in the r12.0 SP2 policy store.
• A common r6.x key store. The common key store enables single sign-on between both environments.

  Note: Although not illustrated, you can enable single sign–on between both environments using multiple key stores.