DSNWVSMF
Module DSNWVSMF is part of the Instrumentation Facility (IF). The Instrumentation Facility provides both traces and dump services, as well as statistics and accounting services for DB2. DSNWVSMF contains routines used by Instrumentation Facility write SMF records for traces.
Reference Sources
DB2 Universal Database for z/OS, Diagnosis Guide and Reference SES1-2941-01.