CA Dynam for VSE User Guide

IBM Virtual Tape Facility (VTAPE) Support
IBM Virtual Tape Facility (VTAPE) Support
The IBM Virtual Tape Facility (VTAPE) allows tape data to reside either in a
VSAM file or on a remote system such as Linux, UNIX, or Windows. The VTAPE
command is used to communicate with the Virtual Tape Facility to start and
stop Virtual Tape support.
IBM VTAPE Command Format
The IBM VTAPE command has the following format:
VTAPE START,UNIT=cuu,LOC=ipaddress:portnumber,FILE='filename',WRITE
VSAM
SCRATCH
READ
VTAPE STOP,UNIT=cuu
Note: Up to three FILE= parameters can be specified, each of which can be up
to 100 bytes in length.
Overview of CA Dynam/T Support of VTAPE
Users can use CA Dynam/T to control input and output processing of VTAPE
files. Additionally, VTAPE information can be maintained in the Catalog file and
VTAPE volumes are indicated in reports.
Input Processing
For input processing of VTAPE files, users can specify a data set name using
the DSN=data set name parameter on the VTAPE command instead of
specifying the LOC and FILE parameters.
Example:
VTAPE START,UNIT=cuu,DSN=’dataset’
When the DSN parameter is specified on the VTAPE START command, CA
Dynam/T checks the catalog at job exit time and, if the VTAPE information
exists in the catalog for the volume the appropriate LOC and FILE parameters
are substituted on the VTAPE command. If the VTAPE information or data set
name does not exist in the catalog, an error message is issued.
Chapter 3: Supporting Tape File Management 3–55