CA Dynam for VSE User Guide

Using Other Software with CA Dynam/FI
CA Dynam/FI options may be associated with each, and a data set may be
switched from one device type to the other (as a default) by using the DYNCAT
ALTER command (or the CUI File Management transaction) to change its file
type characteristic. This means that disk allocation information and tape
density information may be associated with the same data set. To create the
following, ensure that you adhere to the specifications described here:
• Data set on tape – supply a TLBL and specify that it is a TAPE data set in
the Catalog. CA Dynam/FI assures that the DTF type is changed to tape,
and CA Dynam/T controls it.
• Same data set on disk – supply a DLBL statement and specify that the
data set is a DISK data set in the Catalog.
If you define the data set as FI in the Catalog, you must also define attributes
to permit both CA Dynam/D and CA Dynam/T control in the Catalog. In this
case, the resulting DTF type will be determined by the label type (TLBL or
DLBL). In addition, when presented with a scratch tape mount message or
while in DASD space recovery, the operator may direct that the file be written
on the other device type.
Data Set Names
Since the entire CA Dynam family uses the same Catalog file, duplicate data
set names with different file attributes may not exist in the Catalog. Any data
set defined in the Catalog as disk will be processed as an uncontrolled file by
CA Dynam/T. Tape options which are defined by CA Dynam/T users on the
TLBL (such as rewinding and unloading a tape at close) take precedence over
any conflicting CA Dynam/FI-defined options.
The following CPU- and partition-independent substitutions are supported by
CA Dynam/FI:
Substitution Example Resolved DSN
=== ===WORK BGAWORK
==@ ==@WORK BGAWORK
== ==WORK BGWORK
CPU-- CPU--WORK CPU-AWORK
Searching the Catalog
If you use CA Dynam/D, note that CA Dynam/FI searches the Catalog even
when you provide DLBL statements with EXTENT statements.
Chapter 6: Controlling File Independence 6–37