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From Novice to Pro: A Comprehensive Guide to Mastering AS/400

Jul 24, 2023 5:52:17 PM


The AS/400, now known as IBM i, is a powerful and versatile computer system that has been widely used in businesses for decades. Mastering this platform can open doors to a plethora of career opportunities and provide you with the skills to manage critical business operations. Whether you're a beginner exploring the world of AS/400 or an IT professional looking to enhance your skill set, this comprehensive guide will take you on a journey from novice to pro.

1. Understanding the AS/400 (IBM i) System:

In this chapter, we delve into the fundamentals of the AS/400 system. We explore its history, architecture, and key components. Readers will learn about its unique single-level storage, object-oriented nature, and integrated database management system. We'll also touch on the evolution of the platform into IBM i and its modern capabilities.

2. Getting Started with AS/400:

Before diving into advanced topics, it's crucial to set up your AS/400 environment. This chapter guides you through the installation process, hardware requirements, and initial configuration. You'll also learn about the operating system and user interface, helping you become comfortable navigating the system.

3. Mastering AS/400 Commands:

AS/400 operates using a command line interface, and understanding its commands is essential. We'll cover the basic commands, file management, security settings, and system administration tasks. By the end of this chapter, you'll have a strong command over the AS/400 command language (CL).

4. Programming on AS/400:

Here, we dive into programming on the AS/400 platform. We'll introduce you to RPG (Report Program Generator) and CL programming languages, which are central to application development. You'll learn about data types, file handling, program structure, and debugging techniques. We'll also explore modern programming languages, like Java and Python, and their integration with AS/400.

5. Database Management on AS/400:

The integrated database management system (DB2) is a cornerstone of the AS/400. In this chapter, we delve into database concepts, design, and implementation on the platform. You'll learn how to create and manage databases, perform SQL queries, and ensure data integrity and security.

6. Networking and Connectivity:

AS/400 systems don't exist in isolation; they're part of a larger network. This chapter covers networking principles, TCP/IP configuration, and connectivity options. You'll understand how to set up remote access, web services, and integrate the AS/400 with other systems seamlessly.

7; System Management and Performance Optimization:

Maintaining and optimizing an AS/400 system is crucial for efficient operations. We'll explore system monitoring, performance tuning, backup and recovery strategies, and high availability solutions. By the end of this chapter, you'll be equipped to keep your AS/400 environment running smoothly.

8. Advanced Topics and Future Trends:

To truly become a pro, you need to stay ahead of the curve. This chapter delves into advanced topics like virtualization, cloud integration, and modernization strategies. We'll discuss the future trends of the platform and how to adapt your skills to stay relevant in a rapidly evolving IT landscape.


Mastering the AS/400 (IBM i) system is a rewarding journey that opens doors to a world of opportunities in IT. From understanding the system's architecture to programming applications, managing databases, and optimizing performance, this comprehensive guide has taken you from a novice to a pro. By following the steps outlined in this guide and continuously staying updated with the latest advancements, you'll be well-equipped to excel in your AS/400 journey and contribute significantly to your organization's success.

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