Adding and removing locales in the z/OS Unicode environment

z/OS Unicode Services maintains the storage for locale objects. Once created, the locale objects remain available unless they are deleted via an operator command or at the next IPL. Additionally, the z/OS Unicode Services dynamic locale service supports the build of individual locale categories as needed, thus avoiding the overhead of building all locale categories unnecessarily.

Locale objects can be added to the z/OS Unicode Services environment by the following ways:

Calling the z/OS Unicode Services dynamic locale service and having them created dynamically.
Adding statements to the CUNUNIxx parmlib member specifying the locales to load during the system IPL.
Issuing the SETUNI command to add locales to the z/OS Unicode Services environment.

Note: For optimal performance, use the CUNUNIxx parmlib member to have all locales expected to be used on the system to be built and loaded at IPL time.