Upgrading from Oracle E-Business Suite 11i to R12 is typically straightforward. That said, your team should still be prepared to face any curves that come their way. This paper details how Pythian responded to several challenges in an upgrade that contained complex peculiarities, while still delivering significant time savings for our client. We purged non-required data, dealt with Apache lock-file issues, fixed post-patch log-in problems, restored crashed systems and resolved other issues. The set-up challenges were numerous. We successfully configured SSL for the Apps R12 configuration using internally generated chained certificates. We implemented a load balancer (Cisco Content Switch). We found a configuration solution for Apps integration with NAM3. Lastly, a reverse proxy setup was required. Our production upgrade plan was successful, and the entire process came in at 48 hours–24 hours shorter than estimated.
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