IBM SC33-1683-02 - Manual (Page 715)

SMF header and SMF product section
The SMF header describes the system creating the output. The SMF product
section identifies the subsystem to which the statistics data relates, which, in the
case of CICS statistics, is the CICS region, or the TS data sharing server. Both the
SMF header and the SMF product section can be mapped by the DSECT
STSMFDS, which you can generate using the DFHSTSMF macro as follows:
STSMFDS DFHSTSMF PREFIX=SMF
The label ‘STSMFDS’ is the default DSECT name, and SMF is the default PREFIX
value, so you could also generate the DSECT simply by coding
DFHSTSMF .
The STSMFDS DSECT has the format shown in Figure 94 on page 684.
format of statistics records
Chapter 25. CICS statistics 683