Configuring SMF for IBM z/OS Workload Interaction Correlator

For IBM® z/OS® Workload Interaction Correlator to be able to collect CICS® data, you must enable the WorkLoadIntCorr feature of z/OS and enable the generation of SMF type 98 subtype 1024 records.

To find out whether your z/OS system is configured with WIC, issue the DISPLAY SMF,O command to see whether the WIC option is present.

Issue the DISPLAY SMF,WIC command to see the status of the WIC parameter and what SMF type 98 subtypes are being collected. Each subtype corresponds to a registered IFAWIC exploiter. Subtype 1024 is dedicated to CICS.

Enabling the generation of SMF type 98 subtype 1024

Complete the follow tasks:
  1. Ensure that the WIC option for SMF is specified. For instructions, see WIC — Specifying the generation of type 98 records for IBM z/OS Workload Interaction Correlator.
  2. Specify SYS(TYPE(98)) to collect all SMF type 98 subtypes. Or specify the TYPE parameter in your SMFPRMxx configuration to collect SMF type 98 subtype 1024.
Note: CICS MN domain dump includes information about WIC such as the status of CICS generation of WIC data and the maximum buffer slots.

Disabling the generation of SMF type 98 subtype 1024

You can disable the generation of SMF type 98 subtype 1024 in several ways. For example, you can use one of the following SETSMF commands to do so:
  • SETSMF SUBSYS(STC,NOTYPE(98(1024)))

    This command disables the generation of SMF type 98 subtype 1024 only.

  • SETSMF NOWIC

    This command disables the generation of all subtypes of SMF type 98 except subtype 1.

To find out how you can control the generation of SMF data, see Customizing SMF.

Type 85 ENF

CICS is notified of IBM z/OS Workload Interaction Correlator configuration changes (for example, when the generation of SMF type 98 or its subtype 1024 is enabled or disabled), through type 85 Event Notification (ENF) signals. Upon receiving the ENF 85 notification, CICS will act accordingly depending on the status of WIC data collection in CICS at that time.