2 Patching Your Environment Using OPatchAuto

OPatchAuto is installed with the OPatch utility as a part of your installation. OPatchAuto provides several commands that you can use to automate the application and roll back of a patch in a single host or multi-host environment.

For more information about patching with OPatchAuto, see the following topics:

• Preparing to Use OPatchAuto
  To ensure successful patching, there are several prerequisites you should complete to prepare your environment for running OPatchAuto, such as obtaining the latest version of OPatch, obtaining required patches from My Oracle Support, and backing up the environment.
• Using OPatchAuto to Patch Oracle Fusion Middleware
  Use OPatchAuto to automate the necessary steps for applying a patch on a single host or multi-host environment.
• Building A Topology Using Fusion Middleware Composer
  For multi-host patching, a prerequisite is to define your configuration in a topology file. Use Fusion Middleware Composer to create this file and provide information about your environment to OPatchAuto. This file allows OPatchAuto to identify the topology you want to patch and automatically perform the patching steps without manual intervention.