If your installation shares the RACF® database with systems running releases prior to OS/390 Version 2 Release 10, your RACF support of Lotus Notes for z/OS and Novell Directory Services for OS/390 (NDS) is implemented using mapping profiles in the NOTELINK and NDSLINK classes. See Mapping profiles in the NOTELINK and NDSLINK classes.

If your installation shares the RACF database with only systems running z/OS, or OS/390 Version 2 Release 10 or above, you might or might not be using mapping profiles in the NOTELINK and NDSLINK class. You should see your system programmer to find out if your installation has been converted for stage 3 of application identity mapping. Stage 3 of application identity mapping uses an alias index that is automatically maintained by RACF to map application user identities, such as Lotus® short names and NDS user names, without using mapping profiles in the NOTELINK and NDSLINK classes. Once at stage 3, you can deactivate the NOTELINK and NDSLINK classes. See z/OS Security Server RACF System Programmer's Guide for information about running the IRRIRA00 conversion utility to convert to stage 3 of application identity mapping.

If your installation is new to RACF and you are not running any releases prior to OS/390 Version 2 Release 10, your system will automatically use application identity mapping at the stage 3 level without running the IRRIRA00 conversion utility, and there will be no mapping profiles in the NOTELINK or NDSLINK classes.