OS/390 MVS IPCS User's Guid

Other Pieces of IPCS
For example, if you have installation-defined dump exits that were previously in
MVS/XA SP load module AMDPRECT, you can add them to BLSCUSER.
PRDMP
Print dump (PRDMP) is a service aid that IPCS replaced in MVS/ESA SP Version 3.
Most of PRDMP’s functions are now available through IPCS subcommands and exit
routines. An appendix in OS/390 MVS IPCS Commands gives the equivalent
PRDMP functions in IPCS.
Problem and Data Set Management
IPCS has facilities to keep track of problems with your system and dump data sets
stored on the system. However, you usually do not need to use these facilities. The
Information/System family of products provides the same function.
How IPCS Works as a TSO/E Application
IPCS is a problem-state, key 8 program that runs in a TSO/E user’s address space.
IPCS operates in interactive and batch environments supported by TSO/E.
The base of IPCS is a TSO/E command processor. The TSO/E command “IPCS”
activates the IPCS command processor. All commands used to perform IPCS
functions are “subcommands” of the IPCS command. You can use IPCS functions
from any TSO/E line mode session.
For interactive use, the IPCS dialog uses ISPF dialog support to run as an
interactive, full-screen application. This application uses the IPCS command
processor. Figure 2 shows where the IPCS command processor and IPCS dialog fit
in the system. Note that the IPCS command processor environment is not available
from ISPF; you cannot invoke IPCS subcommands directly from the ISPF dialog.
Figure 2. IPCS as a TSO/E Application
A set of data set libraries contain the code to run IPCS. Table 1 lists these data
sets.
Table 1. Libraries that Contain IPCS Code
Data Set
Contents
SYS1.HELP
TSO/E HELP data for IPCS commands and subcommands
SYS1.MIGLIB
IPCS code
Chapter 1. Introduction to IPCS 9