HP SNA Data Transfer Facility for OpenVMS

HP SNA Data Transfer SPD 27.85.13
Facility for OpenVMS, Version 3.6
OpenVMS DTF Server
The OpenVMS DTF server software can be installed
on any OpenVMS I64, OpenVMS Alpha or OpenVMS
VAX system in a network containing an SNA gateway
or server. The node that is running the OpenVMS DTF
server software is referred to as the server node. All
DTF le requests go through this server node which
communicates with the Mainframe DTF system using
an SNA gateway or server. The DTF server software
also performs text translation (DMCS/EBCDIC). How-
ever, this can be done optionally by the MDU software.
The OpenVMS DTF server software includes the Open-
VMS DTF utilities software described in the next section.
OpenVMS DTF Utilities
The OpenVMS DTF utilities software is an optional com-
ponent that can be installed on any OpenVMS sys-
tem where users wish to transfer les using the re-
coverable copy feature. The utilities software should
also be installed if IBM users will be requesting re-
coverable copies involving that OpenVMS node. The
utilities software consists of a server management util-
ity and a checkpoint/recovery utility (TRANSFER/DTF).
The OpenVMS DTF utilities software communicates
with the OpenVMS DTF server software to accomplish
the data transfer. It is not necessary to install the Open-
VMS DTF utilities software on the server node since
these utilities are included in the OpenVMS DTF server
software package.
Mainframe DTF
Mainframe DTF (MDU) is a layered software product
that operates on an IBM mainframe. The Mainframe
DTF (MDU) software can be installed on any IBM S/370-
class, IBM S/390-class, or IBM zSeries Server running
in 31-bit mode. MDU is also supported under z/OS run-
ning in 64-bit mode.
MDU accepts le operation commands from the Open-
VMS DTF server software and maps them into main-
frame le commands to perform the operation. It also
provides interfaces so TSO users can issue recoverable
and non-recoverable copy commands in interactive or
batch mode. MDU software consists of two parts: a
VTAM application program that controls the communi-
cations with the OpenVMS DTF server nodes for the
purpose of transferring les, and user interfaces. The
three user interfaces are: a TSO command processor,
a single-line command interface (REXX required), and
an ISPF dialog.
Conguration
MDU must be installed on each IBM system with which
users want to communicate. The HP network requires
one OpenVMS DTF server component installed on a
OpenVMS system, and may require multiple server
component installations depending on the amount of
use of DTF. Other OpenVMS nodes in the network do
not require any additional software since DTF allows
users to use standard le transfer commands to ac-
cess IBM les. The OpenVMS DTF utilities software
is required only if a particular OpenVMS system’s users
need the recoverable copy feature or if IBM users desire
recoverable copy operations to that OpenVMS system.
Recoverable copy works only to OpenVMS nodes with
the OpenVMS DTF server software or the OpenVMS
DTF utilities software installed.
FEATURES
The DTF for OpenVMS product uses a variety of familiar
user interfaces to make users more productive. Users
do not have to learn new commands and procedures.
Users in the OpenVMS environment can issue stan-
dard DCL commands, like COPY, TYPE, DIRECTORY,
and so on. Alternatively, they can use the Record
Management System (RMS) programming interface or
the TRANSFER/DTF utility for data exchange between
OpenVMS and IBM systems.
IBM mainframe users can access and transfer data by
using the TSO DTF command processor, the TSO ISPF
panels, or the single-line interface. The TSO command
processor can also be invoked in batch mode.
DTF Access from OpenVMS Clients
OpenVMS DTF users can initiate non-recoverable or re-
coverable, bidirectional le transfers between IBM DTF
clients and themselves. DTF supports the following
OpenVMS DCL commands.
Note: Some of the qualiers associated with these DCL
commands are subject to restrictions when used with
DTF.
APPEND DELETE SEARCH
BACKUP DIFFERENCES
SUBMIT
REMOTE
CLOSE DIRECTORY TYPE
CONVERT EXCHANGE/NETWORK WRITE
COPY OPEN
CREATE READ
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