Troubleshooting CHINIT statistics data

Checks to carry out if CHINIT statistics SMF data is not being produced.


Procedure

  1. Issue the DISPLAY TRACE command. You need TRACE(S) CLASS(4) enabled to gather channel initiator statistics SMF data.
  2. If the trace is enabled, data is written to SMF when any of the following conditions occur:

    • On a timed interval, depending on the value of the STATIME queue manager system parameter. A value of zero means that the SMF statistics broadcast is used. Use the DISPLAY SYSTEM command to display the value of STATIME.
    • The SET SYSTEM command is issued to change the value of the STATIME system parameter.
    • The channel initiator is shut down.
    • The STOP TRACE(S) CLASS(4) command is issued.

  3. SMF can hold the data in memory before writing it out to the SMF data sets or the SMF structure. Issue the MVS™ command D SMF,O and note the MAXDORM value. The MAXDORM value is displayed in the format mmss, where mm is the time in minutes and ss is seconds. SMF can keep the data in memory for the MAXDORM period before writing it out.

Parent topic: Dealing with issues when capturing SMF data for the channel initiator (CHINIT)