Pathway/XM System Management Manual

Configuring the Pathway/XM Environment

Compaq NonStop™ Pathway/XM System Management Manual—426761-001

4-15

Configuring Global Resources and Defaults

The next example specifies that only the super ID user can modify the Pathway/XM

environment:

SET PATHWAY OWNER 255,8

SET PATHWAY SECURITY "O"

Before the START PATHWAY statement is processed, the owner ID is always the

process accessor ID of the PXMCOM process and the security value is “O” (owner).

You can also specify a security value to designate which users can run each configured

SCREEN COBOL program, as described in Specifying Security for a PROGRAM

Object on page 5-15.

Configuring Global Resources and Defaults

In the Pathway/XM environment, additional processes of many kinds are created as

needed to support increased transaction workload. The SET NODE and ADD NODE

statements enable you to define the system resources available for running processes in

the Pathway/XM environment. When configuring a NODE object, you define a set of

processors (CPUs) within a specific NonStop

Himalaya system where the

Pathway/XM software can start processes to support either requesters or servers in the

Pathway/XM environment. A NODE object, therefore, represents a logical rather than a

physical (Expand) node, but it is associated with a physical node.

You can also define global default values for some configuration attributes in the NODE

object. These defaults will apply to all the processes to which the NODE object applies.

For the complete syntax of the SET NODE statement, including descriptions of all the

attributes you can set for a NODE object, refer to SET NODE

on page 10-26. For the

syntax of the ADD NODE statement, refer to ADD NODE on page 10-7.

Specifying the ROLE attribute (CLIENT or SERVER)

The ROLE attribute identifies whether a NODE object will be used for processes that

support requesters or processes that support servers.

If you set ROLE to CLIENT, the NODE object specifies CPU resources for running

TCPs, link control service (LCS) processes, and possibly (depending on the NODES

clause in the SET PATHMON statement) PATHMON processes.

If you set ROLE to SERVER, the NODE object specifies CPU resources for running

server processes.

In addition, Pathway/XM starts one process broker (PB) process for each client or server

NODE object you define.

You must define at least one client NODE object and one server NODE object in your

configuration.

Note. After the START PATHWAY statement is processed, if you do not specify a value for

the SECURITY attribute, it defaults to N (any local or remote user). This N value can result in

a security risk for your system. It is recommended that you set the SECURITY attribute to O,

so that only persons logged on as the local super ID can make changes to the configuration.