In this chapter, we covered the EBS architecture and how it can achieve maximum availability. We looked at why Oracle RAC is suitable for addressing the needs of EBS for a scalable and resilient database solution in near-zero downtime environments. We also looked at the steps to enable RAC EBS. Using the EBS AutoConfig utility, the DBA propagates the configuration parameters from the context file across the whole system and makes the parameters active. AutoConfig, in turn, generates a lot of other EBS configuration files.
In addition, we looked at the EBS R12 installation. We installed Oracle 11g in CRS, ASM, and RDBMS homes, as already covered in chapters 3 and 9. We also patched the ASM and RDBMS Oracle homes to ensure interoperability with the application tier. We looked at enabling AutoConfig on the new Oracle 11g RDBMS home, thereby making it EBS-aware and finally reconfigured the application tier to work in tandem with the newly created Oracle home.
In the next chapter, we will...