2. Planning for Installation and Use of CA MICS › 2.3 Installation Planning and Parameter Specification › 2.3.3 CA MICS JCL Planning and Parameters › 2.3.3.3 JCLGEN Parameters for Special Requirements › 2.3.3.3.4 OS Data Set Names

2.3.3.3.4 OS Data Set Names

All OS data set names in CA MICS are constructed of two
parts, an installation defined prefix and a standard
descriptive suffix.  As part of the installation of CA MICS,
the prefixes to be used at the complex and unit database
levels must be defined in the PARMS members JCLDEFC and
JCLDEF respectively.  See Sections 2.3.1.6 and 2.3.3.2.1 for
the explanation and examples for defining prefixes for disk
and tape data sets.

It is strongly recommended that the descriptive suffix in the
names not be changed.  The CA MICS documentation contains
thousands of references to the standard CA MICS names.  The
effort required to change all references and to continue to
update new documentation is considerable.  Changing the names
without changing the documentation is sure to result in
confusion for CA MICS users.  Even if all documentation is
changed at the installation, CA MICS education classes,
Technical Support, and other CA MICS installations will
continue to use the standard names.  This will cause a
constant communications problem.

Should the standard CA MICS names conflict with installation
standards, an attempt should be made to get a waiver for the
CA MICS data set names.  If there is no alternative to
changing the standard names, PARMS member JCLNAMES can be
used to assign new names to CA MICS data sets.  Section
2.3.3.3.2.3 describes how to specify new data set names in
JCLNAMES.  PARMS member ALLNAMES is a sample of JCLNAMES
with all standard names defined.

For disk data sets, changing JCLNAMES is all that is required
to have CA MICS reference the new installation names.  Tape
data sets are generation data groups.  The names specified
for tapes in JCLNAMES describes the names for a class of tape
files (i.e.  ACCT, AUDIT, BACKUP, HISTW, HISTM, or MBACKUP).
The class name is combined with a file identifier and
generation data group descriptor to create the tape data set
name.

BACKUP and MBACKUP tapes have the timespan as the file
descriptor, while other tapes use a file name as the
descriptor.  To change the data set names for tape files, the
appropriate PROTOLIB members must be modified.  The PROTOLIB
members that contain tape data set names are ACTINITA,
BACKUP, DBTPDDS, MNACT199, and MONTHLY.  As part of unit
generation, source member GENPROAR generates the
prefix.MICS.PARMS members WKccc300 and MNccc300.  You must
change GENPROAR and not the generated PARMS members.