IBM 3174 Introduction

Function
File Maintenance
Central Site Customizing provides the ability to create and maintain, at a central
site, a
library that contains customizing parameters for all the 3174 controllers in a
network. Central Site Customizing also makes it possible to generate customized
diskettes
for the network 3174s.
File maintenance
for central site customizing includes the ability to:
• Create and maintain customizing records for all 3174 controllers on a
controller-by-controller basis
• Select customizing data records for generating diskettes on a
controller-by-controller basis.
Hardware Requirements
Host Support
Central Site Customizing can be performed from all models of the 3174 except
models
81 R, 91 R, 82R, or 92R. The Central Site Customizing Utility (CSCU)
requires
that the controller:
• Be offline
• Have a 3278 or similar terminal attached to port 0
•
Have two diskette drives or one diskette drive and one fixed disk drive.
No host support is required
for Central Site Customizing. The ability to customize
controllers is supported, regardless of host protocols.
Central Site Change Management (CSCM)
Central site change management (CSCM) allows the user to electronically
distribute customization parameters or microcode data to Systems Network
Architecture (SNA) 3174
controllers that are serviced from a central site. CSCM
requires the Central Site Customizing
Utility to establish and maintain the central
site
library on a 3174 (except Model 81R, 91R, 82R, or 92R) that has been
designated as the central site controller.
Note: If any of the large- or medium-cluster controllers supporting Central Site
Customizing is configured
for the gateway feature, it cannot be the central
site controller.
It can, however, be a network controller. Small-cluster
controllers cannot be central site controllers.
The customization parameters
or data are electronically distributed by Version 1
Release 2 of NetView Distribution
Manager installed in the central site MVS/370 or
MVS/XA host. NetView DM uses LU 6.2 support provided in ACF/VTAM Version 3
Release
2, and defined protocols for managing changes and data distribution using
an enhanced Systems Network
Architecture Distribution Services (SNADS) format.
Customization parameters (the
parameters contained in the central site library) are
distributed electronically to an SNA 3174 controller without disrupting normal
workstation operations. Activation of the
electronically delivered parameters will
require an initial microcode load (IML) of the 3174 controller. Electronic
distribution of other data such as patches, new microcode engineering change
release levels, Request for Price Quotations (RPQs),
or downstream load (DSL)
device code
may require network site intervention, depending on the 3174 model
or the choice of hardware features in the remote 3174.
Chapter 2. Features and Functions of the 3174 Controller 2-13

IBM 3174 Specifications

General

Brand	IBM
Model	3174
Category	Controller
Language	English