The name of a data structure can be a maximum of  characters-only  if you begin

the name with a T and is formatted as Txxxxxyyyy:

Where:

    T = Processing option data structure.

    xxxxxyyyy = The program number for the application or report.

    For example, the processing option data structure name for the P0101 application is T0101.

media storage object

    Files that use one of the following naming conventions that are not organized into table format: Gxxx, xxxGT, or GTxxx.