All you need to know about the oracle IAM Upgrade!

  • Change in middleware topology: Middleware is used for interaction between the parts of an application and among different applications.
  • Now system components are managed by the WebLogic Management Framework instead of OPMN in Oracle Fusion Middleware. WebLogic Management Framework provides heterogeneous management capabilities for basic administrative capabilities such as configuration settings, start, stop, etc.
  • Eliminated middleware home and redefined the Oracle home.
  • Introduced support for a “per domain” Node Manager. A Node Manager enables a person to perform typical operations for a Managed Server and itself runs as a separate process from Oracle WebLogic Server.
  • Eliminated Oracle Web Cache in 12c.
  • Interoperability: Interoperability is the ability of two Oracle Fusion Middleware products to work together in a supported Oracle Fusion Middleware configuration, provided their version is the same.
  • Compatibility: Compatibility is the ability of two Oracle Fusion Middleware components of different versions to interoperate.
  1. In the previous version of 11g, the application developer required two separate installations to add the Oracle JRF libraries and components, namely Oracle WebLogic Server and Application Developer. Whereas, in 12c, only a single Oracle Fusion Middleware Infrastructure distribution installation contains both elements.
  2. In the Infrastructure 12c installation, you need to create a set of required schemas in a supported database that you didn’t require in the 11g version.
  3. You will need to use the 12c Repository Creation Utility (RCU) to create the new 12c OPSS schema if you use OID (Oracle Internet Directory) in the 11g version. However, you don’t need to upgrade to an OID-based policy store to move to 12c.
  4. In Oracle Fusion Middleware 12c HTTP Server instances can be configured as a part of an Oracle WebLogic Server domain by using the Oracle Fusion Middleware Configuration Wizard, which was earlier configured in a separate Oracle instance directory outside the 11g Middleware home.

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