Because WebSphere® ESB for z/OS® is installed and configured into the WebSphere Application Server, the service level applied to WebSphere ESB for z/OS is done so through the WebSphere Application Server product, using the WebSphere Application Server techniques for applying service level or restoring to the previous accepted service level
Service that is applied to the product data sets and product file system occasionally requires corresponding changes to be made to the configuration file system for existing application serving environments that configure at a lower service level. Most of these post-maintenance or post-install updates can be performed automatically. This is done by the post-installer. See Applying a service level or restoring to the previous accepted service level in the WebSphere Application Server for z/OS information center for a description of how to apply service