CA Dynam for VSE User Guide

Preparing for CA Dynam/T
Modifying JCL
The final step in preparing to use CA Dynam/T includes the following JCL
changes:
1. In order for the system to recognize a tape file that is to be controlled, the
FILE-ID field of the TLBL must match a data set name in the Catalog.
−
−
Such TLBLs already exist in installations with existing conventions and
standard labeled tape files. However, review the JCL to make sure that
each data set name uniquely identifies one tape data set.
For installations without existing naming conventions or whose tape
files are unlabeled, a TLBL must be created referencing a data set
name in the Catalog.
2. Remove all logical unit assignments to tape drives to enable the Automatic
Volume Recognition facility to function. This change is not required
because CA Dynam/T respects existing assignments. However, not using
this facility defeats the purpose of an automated tape management
system.
The following example displays a job stream before and after conversion to
CA Dynam/T control:
Before Conversion
// JOB LOAD AND EDIT PR TIME CARDS
// ASSGN SYS008,280 UNLABELED TC TAPE OUT
// EXEC PRTPLD
...TIME CARD INPUT...
/*
// ASSGN SYS008,280 UNLABELED TC TAPE IN
// ASSGN SYS010,281
// TLBL SYS010,'TIME CARDS' EDIT TC FILE
// ASSGN SYS012,282
// TLBL SYS012,'MASTER FILE' MASTER FILE IN FOR EDIT
// EXEC PREDIT
/*
/&
Chapter 2: Maintaining Tape Files 2–5