Because each Get_Transaction and Return_Transaction call creates an SMF type 33 record, multi-trans programs can greatly increase the amount of data sent to the SMF data set. On the other hand, it is the type 33 record that contains the accounting information for APPC/MVS transaction programs.

If you need to conserve the amount of data sent to the SMF data set and do not need specific accounting for TPs scheduled as standard or multi-trans, turn off SMF recording for the SMF type 33 record. SMF recording is controlled by the TYPE and NOTYPE parameters in the SMFPRMxx parmlib member.

For more information about controlling SMF recording, see the SMFPRMxx description in z/OS MVS Initialization and Tuning Reference.