An operator can display detailed information about APPC/MVS work running in the system by using the DISPLAY APPC (D APPC) and DISPLAY ASCH (D ASCH) commands. The information requested appears as ATB1xxI or ASB1xxI messages, respectively, which are described in z/OS MVS System Messages, Vol 3 (ASB-BPX). For the syntax of the DISPLAY command, see z/OS MVS System Commands.

The DISPLAY APPC command displays information about the status of TPs, APPC/MVS servers, and LUs. The DISPLAY ASCH command displays information about the status of the APPC/MVS transaction scheduler and the work it manages. Tables in Tracking Changes to the APPC/MVS Configuration and Workload summarize the types of information you can display with various DISPLAY commands.