Security for JMP application programs
Application programs that run in JMP regions need to access UNIX System Services. Therefore, when running a JMP application, you must use RACF® (or an equivalent product) and IMS signon verification security.
To use RACF with JMP regions, define the user IDs, which must have OMVS segments, to RACF.
Related reading: For information about defining user IDs to RACF, see z/OS® UNIX System Services Planning.