CA Dynam for VSE User Guide

Using Other Software with CA Dynam/FI
Job Control (JCL) Options
Users of CA Dynam/FI, CA Dynam/D and CA Dynam/T may define Job Control
options. CA Dynam/FI always receives control at OPEN/CLOSE time before
either CA Dynam/D or CA Dynam/T. Therefore, Job Control options which are
defined by CA Dynam/FI in the file DTF will be overridden by either CA
Dynam/D or CA Dynam/T.
For example, if both the CA Dynam/FI option REW and the CA Dynam/T option
RUN are specified for the same file, the RUN option (rewind and unload tape at
close) will prevail. The only exception to this rule is the CA Dynam/FI option
RELEASE (release a logical assignment at close) which is performed after the
CLOSE processing has completed. This overrides any conflicting CA Dynam/T
or CA Dynam/D options.
CA Dynam/FI replaces variables in the data set name such as '==' and 'CPU--'
(for partition- and CPU-independence) before attempting to access the Catalog
for an entry. Therefore, the Catalog entry must exist in its resolved form.
Since different partitions or systems may be using these data set names for
differing file structures, this is necessary for CA Dynam/FI to return the
attributes of each file.
With System Utilities
System utilities (either IBM or original equipment) generally have problems
with CA Dynam/FI. This is because most utility-style programs either do not
use LIOCS or inspect and modify their DTFs. In the latter case, since CA
Dynam/FI has substituted a new DTF in partition GETVIS, results can be very
unpredictable. Types of programs that fall into this category include the
following:
• DASD or library backup programs
• File manipulation programs
• Report writers
• VSAM utilities
• Preprocessors (including those used by COBOL compilers).
You should use the DFEXCL option record to prevent programs of this nature
from interfacing with CA Dynam/FI.
6–38 User Guide