2. Planning for Installation and Use of CA MICS › 2.3 Installation Planning and Parameter Specification › 2.3.2 Database Unit Planning and Parameters › 2.3.2.5 Performance Group Names (PRFGP) and Service Classes

2.3.2.5 Performance Group Names (PRFGP) and Service Classes

Beginning with MVS Version 5, and continuing with the z/OS
operating system, IBM introduced a method of managing
workloads called Goal Mode.  With Goal Mode, all workloads
are assigned to a Service Class, an eight-byte character name
describing the workload.  Examples of Service Classes are
"PRODTSO" and "TESTCICS".  These descriptive names are
included in CA MICS files containing information on
workloads.

Prior to MVS Version 5, and with the z/OS operating system
if running in Compatibility, rather than Goal Mode, different
workloads were described by performance group number.  The
performance group number does not provide descriptive
information about the workload assigned to the number.

One of the objectives of the CA MICS database and reporting
process is to present information in a form readily
understandable to even the casual user of the system.  To
this end, CA MICS provides a facility to associate a
descriptive name, Performance Group Name, to accompany the
performance group number in CA MICS database files.  (See the
PERFGRP data element in the CA MICS data dictionary appendix
in the Hardware and SCP Analyzer Guide.)  Section 2.3.2.5.1
explains how to make use of this facility.