HP-UX SNAplus2 R7 Administration Guide

Administering SNAplus2
Overview of SNAplus2 Administration
Note
SNAplus2 configuration is a dynamic process; it is not necessary to define the entire
configuration before starting the SNAplus2 software. The configuration file provides an
initial definition of the available resources, but you can add, delete, or modify resources as
necessary while the SNAplus2 software is running. SNAplus2 stores the current definition
so that you can use it again when you need to restart the system.
The following files contain information about the SNAplus2 client/server network:
SNA network data file
The /etc/opt/sna/sna.net file contains information about which server is the master, and which
servers can act as backup servers. This binary file resides on the master server. You can modify the contents
of this file using the administration programs or the NOF API.
For more information about this file and how to modify it, see Section 4.1,
Configuring Client/Server Functions.
Client network data file
The sna_clnt.net file contains information about how to access SNAplus2 servers, required by a HP-UX
client computer. This text file resides on the client computer. You can modify the contents of this file using
a standard ASCII text editor.
For more information about this file and how to modify it, see Section 11.4.2, HP-UX Client Network Data
File (sna_clnt.net). For information about configuring the equivalent information on a Windows client, see
Chapter 11, Managing SNAplus2 Client/Server Systems.
The following files control the operation of user applications:
3270 emulation program style file
Information about a user’s customization of the 3270 emulation program is held in a style file, which can be
set up either by the System Administrator (as a standard version for multiple users) or by the user (to create
his or her own customization). The information in this file can be modified using the menu interface of the
3270 emulation program.
For more information about 3270 style files, refer to HP-UX SNAplus2 3270 User’s Guide.
RJE workstation style file
Information about the customization of the RJE workstation is held in a style file, which can be set up either
by the System Administrator or by the users of the workstation. The information in this file is in ASCII text,
and can be modified using a standard text editor; SNAplus2 also provides a character-based menu interface
program that you can use to modify the file.
For more information about RJE style files, refer to HP-UX SNAplus2 RJE User’s Guide.
NOF Applications
The SNAplus2 NOF API provides the same management functions as the command-line administration program,
enabling you to define and manage SNAplus2 resources. This means that you can write your own application
programs to administer SNAplus2.
Refer to HP-UX SNAplus2 NOF Programmer’s Guide for more information.
Diagnostic Tools
SNAplus2 provides several diagnostics tools to help you diagnose and correct problems encountered during
SNAplus2 operation:
• Any component detecting a problem or an exception (an abnormal condition that may indicate the cause of a
problem) writes an entry to an error log file. In addition, all significant system events can be recorded in an audit
log file. You can determine which types of events (problems, exceptions, or audits) are recorded. In a client/
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