Invoking the BAM internal trace facility

To enable the BAM internal trace facility for a data set that will be accessed via BSAM, BPAM or QSAM, use any of the methods to start the OPEN/CLOSE/EOV work area trace. If you start GTF with appropriate options, you will get an OPEN/CLOSE/EOV work area trace. The BAM internal trace does not require GTF.

To start BAM internal tracing, use one of these methods:

Specify DCB=DIAGNS=TRACE on the DD statement of a data set for which you wish to trace
Specify the DALDIAGN text unit with dynamic allocation for a data set for which you wish to trace
Use the problem determination optional work area trace started task, IFGOCETR. Refer to Non-VSAM problem determination work area trace started task for information on the started task.

The BAM internal trace facility then operates on the data set or data sets.