In this chapter, we will describe the process of upgrading to Oracle 11g Release 2. Unlike previous versions of RAC, where most deployments were to new systems, we believe there is now an established user base. Consequently, many Oracle 11.2 deployments will be upgrades from earlier versions of RAC.
At the time of writing, the vast majority of RAC installations are running Oracle 10g Release 2, so in this chapter we will discuss upgrading from that version to Oracle 11.2.
Two steps are involved in the upgrade process:
Upgrading Oracle Clusterware and ASM to Grid Infrastructure
Upgrading the RAC Software and the database
Oracle Clusterware and ASM should be upgraded to the Oracle 11.2 Grid Infrastructure ...