Diagnostic tools for DDF and VTAM

Various tools are available to help diagnose problems in DDF.

VTAM traces
The VTAM® buffer trace, the VTAM internal trace, and the z/OS® I/O trace can be used to determine problems during distributed processing, including investigating the flows between logical units (LUs).
Storage Management Services (buffer use) trace
The Storage Management Services trace provides information about the use and availability of VTAM buffer pools.

Parent topic: Diagnostic aids for distributed data