The RACF UNIX identity check has determined that RACF® is not enabled to assign UNIX IDs when users or groups that do not have OMVS segments use certain z/OS® UNIX services. Users and groups that need to access z/OS UNIX functions and resources should be assigned unique UNIX UIDs and unique GIDs in advance of their need to access these services.

However, if you have many users without OMVS segments that need access to z/OS UNIX services, such as FTP, you might choose not to assign UNIX identities in advance. In these cases, you can enable RACF to automatically assign unique UIDs and GIDs at the time they are needed-when users without OMVS segments access certain z/OS UNIX services.

However, the FACILITY class profile BPX.UNIQUE.USER is not defined, so RACF is not enabled to automatically assign unique UNIX identities for z/OS UNIX services. If you would like to use this support, see z/OS Security Server RACF Security Administrator's Guide for more information.