How the Upgrade Wizard Simplifies the Upgrade Process Interoperability and Compatibility with Previous Releases

Introduction 1-3

1.3 How the Upgrade Wizard Simplifies the Upgrade Process

The WebLogic Upgrade Wizard guides you through the steps required to upgrade a WebLogic domain that is compatible with WebLogic Server 7.0, or 8.1 such that it runs in a WebLogic Server 10.3.5 application environment. As part of the upgrade process, you must upgrade any custom security providers and Node Managers used in the domain. You can also use the WebLogic Upgrade Wizard to upgrade to 10.3.5 a WebLogic domain that is compatible with WebLogic Server 9.x or 10.0, but this is optional. This type of domain runs under WebLogic Server 10.3.5 without modification. You can step through the upgrade process interactively, using the graphical user interface GUI, or silently, by creating an upgrade script and running it. Silent Mode is supported for upgrading a WebLogic domain, security providers, and Node Manager.

1.4 Interoperability and Compatibility with Previous Releases

Application environments that run with WebLogic Server 10.3.5 can interact with application environments built on WebLogic Server 7.0, 8.1, 9.x, 10.0, or 10.3. Most existing WebLogic Server applications can be run without modification in the new WebLogic Server 10.3.5 application environment. You should review the compatibility information described in Appendix B, WebLogic Server 10.3.5 Compatibility with Previous Releases, to determine whether any feature changes affect the applications in your environment. If your application uses APIs that have been deprecated or removed, then you may encounter warnings or exceptions at run time. Node Manager Provides high availability to Managed Servers. For more information about Node Manager, see Node Manager Overview in Node Manager Administrators Guide for Oracle WebLogic Server. Upgrade custom Node Manager on each computer in the domain. Applications Any Java EE applications, including Web applications, EJBs, and so on. Typically, applications are deployed to one or more Managed Servers in a domain. Depending on the deployment strategy, applications may reside locally on a computer or be accessible using a shared directory. In addition, external client applications may access the application environment from outside a firewall. Most WebLogic Server applications can be run without modifications in the new WebLogic Server 10.3.5 application environment. For more information, see Section 1.4, Interoperability and Compatibility with Previous Releases. External resources Software components, such as databases for storing domain and application data, load balancers, and firewalls. Verify that all external resources are compatible with WebLogic Server 10.3.5. For more information, see the Oracle Fusion Middleware Supported System Configurations page at http:www.oracle.comtec hnologysoftwareproducts iasfilesfusion_ certification.html . Table 1–1 Cont. Upgrade Requirements for Components in Example WebLogic Application Environment Component Description Upgrade Requirements 1-4 Upgrade Guide for Oracle WebLogic Server 2 Roadmap for Upgrading Your Application Environment 2-1 2 Roadmap for Upgrading Your Application Environment This section describes how to prepare for and perform an upgrade of your WebLogic application environments. Topics include: ■ Section 2.1, Plan the Upgrade