We recently upgraded to 11.5 SP1 and noticed that when we do a Display Trace command, that we now see a MON trace class 29 active. We found in the Systems Guide where: "If your data collector is using IFI=NO or IFI=READS, you will see a performance trace active with class 29. Class 29 has no trace records currently defined for it."
We use IFI=YES. Can you tell me what MON trace Class 29 is used for when IFI=YES?
IBM has changed the way it handles the start of unqualified class 2 or 3 traces that include explicit IFCID records under DB2 V8.
As a result, the CA Insight Performance Monitor for DB2 now uses a second Monitor Class 29 trace in order to get data for specific IFCID records that are used by IQL requests at start-up.