WLM Enclaves have been available for about 28 years, but enclaves, and associated measurements, are still widely misunderstood. DB2 makes heavy usage of enclaves, and with the expansion of DB2 DBATs and High Performance DBATs, using and interpreting the WLM measurements to evaluate DB2 workloads has become both more important and more difficult. During the presentation Peter Enrico will demystify WLM enclaves, DB2’s usage of enclaves, and also demystify associated measurements used to evaluate WLM management of DB2 workloads.