Considerations for NSSs Defined with the VMGROUP Option

Each NSS defined with the VMGROUP option of the DEFSYS command must also be defined with the RSTD option. RACF protection will then be used to protect use of the NSS. For information on setting up a RACF profile for each NSS, see z/VM: RACF Security Server Security Administrator's Guide.

If an NSS has been defined with the VMGROUP option and without the RSTD option, the NSS must be deleted and redefined. For additional information, see the DEFSYS command in the z/VM: CP Commands and Utilities Reference.