Suppressing SMF record writing

If RMF™ per default writes an SMF record type or subtype that you do not want to be written, you can use one of the following methods to suppress SMF recording:

• Use the SUBSYS command in the SMFPRMxx parmlib member. The SUBSYS specification overrides the SYS specification. For example, if you have defined SYS(TYPE(…,72,…)) in your SMFPRMxx parmlib member, you can use SUBSYS(STC, NOTYPE(72(5))) to make exceptions to your SYS specification and just exclude gathering of SMF record 72.5 for started tasks like RMF.

  For more information, refer to z/OS MVS Initialization and Tuning Reference.

• Use the system command SETSMF. For more information, refer to z/OS MVS System Commands.