Web Services Security Guides › CA SiteMinder® Web Services Security Upgrade Guide › Planning Migration and Upgrades › Upgrade Paths

Upgrade Paths

An upgrade consists of deploying 12.52 SP1 components to an existing CA SiteMinder® environment. Upgrading to 12.52 SP1 can be accomplished in two ways:

• Completing a migration.
• Configuring a parallel 12.52 SP1 environment next to an existing environment. Both environments use one or more key stores to maintain single sign–on.

Migration

A migration is the process of upgrading individual CA SOA Security Manager components until your environment is operating at CA SiteMinder® Web Services Security 12.52 SP1. Upgrading individual components consists of one or more steps during which you:

• Take a component offline.
• Upgrade the component.
• Bring the component online.

You upgrade individual components over an extended period to maintain system availability. A key to maintaining system availability is the order in which you upgrade components. During a migration, specific components that have been upgraded can continue to communicate with prior versions. This type of communication is known as mixed-mode support.

The following illustrates the concept of a migration:

Parallel Upgrade

A parallel upgrade is the process of configuring a CA SiteMinder® Web Services Security 12.52 SP1 environment beside an existing r12.1 SP3 environment. Configuring a parallel upgrade consists of multiple steps during which you:

• Leave the existing environment unchanged
• Configure a 12.52 SP1 environment
• Use a common key store or multiple key stores to enable single sign–on between both environments

The following illustrates the concept of a parallel upgrade.