Controlling tracing of DBCTL events

To start and stop tracing of internal DBCTL events dynamically, and define activities to be monitored by the IMS monitor, use the /TRACE command.

About this task

  • The PI keyword specifies that program isolation (PI) trace data be written to a trace table. PI trace entries contain information about program isolation ENQ/DEQ calls and DL/I calls.
  • The PSB keyword requests a trace of all DL/I calls issued for a specified PSB.
  • The TABLE keyword specifies that online tracing into the specified trace tables be started or stopped.

Use the CICS-supplied transaction CETR to trace DL/I activity. For DBCTL, CETR traces a DL/I request until it leaves DFHDBAT.

See Trace entries produced by DBCTL for information on obtaining DBCTL trace entries. See Operations and automation in IMS product documentation for guidance on the syntax of /TRACE commands and keywords, and System administration in IMS product documentation for guidance on the effects using /TRACE commands can have on your system.