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Introduction to the Compaq FTAM Responder
OSI/FTAM Responder Manual—425199-001
1-4
Management Interfaces
Management Interfaces
For those people with access to the Compaq system who are responsible for configuring
and managing FTAM responder processes and for solving FTAM problems, Compaq
FTAM supports the Distributed Systems Management (DSM) management interfaces,
which include the following:
•
Subsystem Control Facility (SCF)
•
PTrace utility
•
Operator message facility of the Event Management Service (EMS)
The use of these management utilities with Compaq FTAM is described in the
OSI/FTAM Configuration and Management Manual.
In addition, system managers and problem solvers on the Compaq system use the File
Utility Program (FUP) to perform many functions on Compaq disk files, including
copying and resecuring files. This utility is described in the File Utility Program (FUP)
Reference Manual.
Architectural Overview
FTAM services facilitate communication between different computer systems in an OSI
network. The communication link (at the FTAM level) created between two systems is
called an association. Each system is further defined in terms of its function in the
association. The system that creates and controls the association is called the initiating
system. The system that responds to the initiating system is called the responding
system. In Compaq FTAM, the initiating and responding functions are performed by
separate processes.
The Compaq FTAM responder process services FTAM requests initiated from remote
systems on the network, such as a request to read a file. The responder acts as an FTAM
file server, mapping FTAM requests into file operations and providing a translation
between Guardian file structures and FTAM file structures.
The Responder and Underlying Subsystems
To communicate over OSI networks, Compaq FTAM uses the services of the Compaq
OSI/AS and OSI/TS subsystems, and either the Compaq LAN access method (TLAM)
(or PAM for G06 and above releases), or the X.25 access method (X25AM), or TCP/IP.
In turn, X25AM and TLAM depend on hardware controllers to provide the 802.3
communications protocol (for TLAM) and the X.25 communications protocol (for
X25AM).
Figure 1-2 provides an overview of the Compaq FTAM responder and these underlying
Compaq products. The figure illustrates how the Compaq FTAM responder and the
underlying Compaq OSI subsystems support the layers of the OSI Reference Model
for both LANs and WANs:
•
The Compaq FTAM responder provides FTAM responder functions at the
Application Layer.