Upgrade to the Current Release › How to Upgrade CA Process Automation

How to Upgrade CA Process Automation

You can upgrade to CA Process Automation Release 4.2 from Release 3.1 SP01 and above using the illustrated process.

Important!

• If needed, upgrade from a release prior to r3.1 SP01 before you begin the process that is documented here.
• If the Orchestrators you are upgrading are installed on 32-bit hosts, see TEC596124 for guidance on migrating to 64-bit hosts.
• Before you upgrade CA Process Automation, the value calculation of the Minimum Number of Finished (Completed, Failed, Aborted) Instances field includes the Failed Instances. After you upgrade CA Process Automation, the Field label changes to Minimum Number of Finished (Completed, Aborted) Instances and the value calculation does not include the Failed Instances.

Follow these steps:

1. Take backups and prepare for the outage.
2. Carry out upgrade prerequisites.
3. Upgrade the Domain Orchestrator.
4. Upgrade other Orchestrators and all clustered nodes.
   • Upgrade a Nonclustered Orchestrator.
   • Upgrade a Cluster Node.
5. Carry out post-upgrade tasks.
6. Test your processes with the upgraded Orchestrators.
7. One of the following:
   • Switch load balancers from Apache to NGINX.
   • Update F5 Pools, iRule definition, and configuration.
8. Configure agents to use simplified communication.
9. Test your processes with simplified communications.