Using the SET command for SMFPRMxx

The SET operator command can be used to modify the SMF recording options dynamically by specifying which SMFPRMxx parmlib member is to be used. Also, if SMF terminates, the SET SMF command can be used to restart SMF.

Using the SET command, the installation can replace all the existing SMF options. For example, an installation can activate SMF recording after an IPL in which NOACTIVE is specified by using the SET command and choosing the parmlib member that contains the ACTIVE option. The SET command, however, cannot change the SID parameter.

For each IPL, a maximum of eight subsystems can be defined to SMF (through the SUBSYS parameter). This is a combined total of those specified at IPL and subsequent SET commands. If the maximum is reached, no new subsystems may be added. Those subsystems previously specified can be given different options.