Troubleshooting channel accounting data

Checks to carry out if channel accounting SMF data is not being produced for channels.

Procedure

1. Check that we have STATCHL set, either at the queue manager or the channel level.
   • A value of OFF at channel level means that data is not collected for this channel.
   • A value of OFF at queue manager level means data is not collected for channels with STATCHL(QMGR).
   • A value of NONE (only applicable at queue manager level) means data is not collected for all channels, regardless of their STATCHL setting.
2. For client channels check that STATCHL is set at the queue manager level.
3. For automatically defined cluster sender channels, check that the STATACLS is set.
4. Issue the display trace command. You need TRACE(A) CLASS(4) enabled for channel accounting data to be collected.
5. If the trace is enabled, SMF data is written:
   • On a timed interval - depending on the value of the STATIME system parameter. A value of zero means that the SMF statistics broadcast is used. Use the DIS SYSTEM command to display the value of STATIME.
   • If the SET SYSTEM command is issued to change the value of the STATIME system parameter.
   • When the CHINIT is shut down.
   • If the STOP TRACE(A) CLASS(4) is issued, any accounting data is written out.
6. SMF might 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. SMF can keep the data in memory for the MAXDORM period before writing it out.