Tracing using the MODIFY command

Use this procedure to trace PDS V2 events using the standard z/OS® MODIFY interface.

About this task

With this method, tracing is dynamic and can be turned on and off as needed.
Note: It is recommended that you use the PDS V2 tracing facility only under the guidance of IBM Software Support.

Procedure

  1. Use the following command in the MODIFY interface: 
    F stcname,PQDBUG [START|ON]|[STOP|OFF] trace_level
    Where
    stcname
    Is the started task name of address space where the persistent data store is running.
    START|ON
    Specifies to start debug tracing.
    STOP|OFF
    Specifies to stop debug tracing.
    trace_level
    Specifies the area or component to trace, as follows:
    HST1
    PDS V2 level 1
    HST2
    PDS V2 level 2
    MTLI
    MTLI - Metal C components
    PDSH
    PDS V2 hook
  2. Review the trace content in the log.