Introduction to Networking for NonStop S-Series Servers

Managing Communications Subsystems

Introduction to Networking for HP NonStop S-Series Servers—520670-005

4-4

Objects

For management purposes, the resources of a subsystem are defined as objects.

Examples of objects are data capture devices, input/output processes (IOPs) or other

processes, disk files, a group of devices or data communications lines, or anything else

that can be identified as an independent entity in the subsystem. By manipulating

objects, you can perform the following types of management functions:

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Removing resources from service and restoring them to service

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Changing the configuration of devices and processes

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Adding, deleting, or moving files and processes

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Collecting statistics on subsystem activities

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Storing information for use in recovering from a system or network failure

Multiple subsystems can control the same physical entity. For example, the Pathway

and SNAX/XF subsystems can both control a Systems Network Architecture (SNA)

device; the device is defined as an object to each subsystem.

Each object has an object type and an object name. The object type describes the

class of the object: for example, CONTROLLER, LINE, DEVICE, SU (subdevice), and

PROCESS are object types. The object name uniquely identifies the object within the

system. The names of data communications objects must conform to certain standards

for the subsystem.

Management Interfaces

Every communications subsystem has an interactive command interface through which

you can control and inquire about subsystem resources. Many communications

subsystems also have programmatic and event management command interfaces.

Interactive Command Interface

Subsystems that support DSM have an interface called the Subsystem Control Facility

(SCF) as their interactive command interface. There are also other applications that

help you perform specific management tasks.

SCF is a command interpreter for managing the configuration and operation of

communications lines and devices. SCF includes commands for starting, stopping,

suspending, and activating lines; for defining, altering, and discovering the

configurations of lines and devices; for displaying statistics and initiating traces; and for

performing a wide variety of other control functions. SCF also supports features such

as aliases, programmable function keys, a customizable prompt, command history

buffers, and a Help key.

There is more discussion of SCF and other interactive utilities in Management Tools on

page 4-8.