SNAX/XF LU Network Services Manual

Appendix A The SNAX/XF Utility
097841 Tandem Computers Incorporated A–1
Introduction The SNAX/XF Utility (SNAXUTL) allows you to create and update the configuration
tables that LUNS uses when establishing or terminating sessions. These configuration
tables include:
The Enhanced System Services (ESS) tables
The Session Establishment (SET) table
The BIND table
To create or update one of these tables, you enter one or more command blocks into an
edit command file. Interactive use is not supported. Input is free-format. Within each
command block, a SELECTFILE command specifies the name of a key-sequenced table
source file. If the source file doesn’t exist, the ALLOCATE command is required.
When you run SNAXUTL, each command block serves as input to a given table source
file. The table source file, in turn, serves as input to a table object file, which LUNS
actually uses to perform services. This object file contains the same information as the
table source file, only in unstructured format. It is also given the same name as the
table source file, except that the letter O is appended as a final character. Because the
table object file is automatically created or updated along with the table source file,
you need not concern yourself with it. You must, however, make certain that your
installation does not inadvertently delete any table object files.
Any time you run SNAXUTL, a listing file is produced. This listing file contains a copy
of the input commands and status messages resulting from command processing.
This file is specified as the OUT file at run time (see “Invoking the Program” in this
section).
SNAXUTL Command
Syntax
This subsection presents the formal syntax of all SNAXUTL commands. For an
example of how to use these commands to create tables for a specific configuration, see
Section 3, “Application Example.”