Installation Guides › Upgrade Guide › Upgrading from r12.1 › How a Parallel Upgrade Works

How a Parallel Upgrade Works

You do not have to migrate an existing r12.1 environment to r12.1 SP3. Rather, you can configure a parallel r12.1 SP3 environment beside an existing deployment.

The following figure illustrates a simple parallel upgrade and details:

• An r12.1 environment that continues to protect existing resources.
• An r12.1 Administrative UI that is used to manage SOA Security Manager objects in the r12.1 policy store.
• An r12.1 SP3 environment that protects new resources.
• An r12.1 SP3 Administrative UI that is used to manage SOA Security Manager objects in the r12.1 SP3 policy store.
• A common r12.1 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.