CA Dynam for VSE User Guide

Preparing for CA Dynam/T
Example:
Defining a data set
// JOB DEFINE A DATASET TO THE CATALOG
// EXEC DYNCAT, SIZE=128K
DEFINE 'DYNAM/T BACKUP' NGEN=003 RETAIN=003
/*
/&
This creates a data set named DYNAM/T BACKUP. When members of this data
set are created, they are retained for at least three generations and for at
least three days.
A tape data set name is composed of up to 44 alphabetic or numeric
characters and can include blanks and periods. Do not use any other special
characters. You can incorporate your installation's existing data set naming
conventions by simply entering the existing names and retention information
into the Catalog. If your installation has no existing conventions, it is highly
recommended that conventions be formulated and used as a part of the
CA Dynam/T implementation process.
You can enter existing generations of data sets with the DYNCAT ADD
command.
Initializing Scratch Tapes
If you will be using tapes as output for CA Dynam/T controlled data sets,
initially define them to the Catalog as scratch tapes by doing any one of the
following:
• By issuing the DYNCAT INT (or INTR) command
• Through the online initialization facility at output OPEN time
When a volume is entered into the Catalog, a search is made to verify that it
has a unique volume serial number. Recognition characters are placed in the
HDR1 label to identify it as a CA Dynam/T controlled tape. You can use the
batch program TDYNLBL to create block printed serial number labels. When
these are placed on initialized tapes, they enable the operator to easily
recognize tapes which are under the control of CA Dynam/T. For more
information about TDYNLBL, see the chapter "Supporting Tape File
Management."
Chapter 2: Maintaining Tape Files 2–3