The IBM i operating system uses a set of variables, called system values, to control the overall operation of your computer system. If your system is part of a network, another set of values, called network attributes, is used to control networking and communications. This course describes how system values and network attributes are used and how you can manipulate them.
The course begins by describing one tool for displaying and changing the contents of selected system values and network attributes, the Change System Options display. This display is sufficient for many system administrators, particularly those with new systems. However, most system administrators eventually want to know what functions they can control via system values and what settings might improve the performance of their systems. Because of this, subsequent sessions of the course describe the purpose of each system value, with emphasis on those system values that are most frequently changed by system administrators.
In addition to learning the purpose of each system value, you will see how to display or change the contents of system values using the DSPSYSVAL, CHGSYSVAL, and WRKSYSVAL commands. You will also see how to copy the contents of a system value into a CL program variable.
Finally, the course describes how to display or change the contents of network attributes.
Approximate Study Time: 3 hours
After completing this course, you should be able to:
- Identify the system value responsible for controlling a specified system function
- Display or change the contents of a system value
- Code the command to copy the contents of a system value into a CL program variable
- Code the command to change the contents of a system value
- Display or change the value of a network attribute
- Code the command to copy the value of a network attribute into a CL program variable
Changing System Options
Displaying and Changing System Values
Basic System Values
Manipulating System Values in a CL Program
System Control System Values
Advanced System Values
The course should be taken by any person responsible for managing an IBM i system. This person may be a system administrator, a system programmer, or a system operator.
This course assumes that you are familiar with the concepts and basic operations of an IBM i system. You can satisfy these prerequisites by successfully completing the courses in the following series:
You should also have an understanding of IBM i work management and security concepts. You can satisfy this prerequisite by successfully completing the following courses: