When you install an NLF, three rows are added to the QMF profile table (Q.PROFILES) to support the NLF. These rows are inserted with a user ID of SYSTEM for the TSO and CICS environments. A unique row is added for each NLF that you install.
The NLF must be installed in each DB2 UDB subsystem you want to use it in. The JCL and control statements for the NLF are shipped on the IBM software distribution (ISD) tape for that feature.