Contents

Figures	vii
Tables	ix
About OS/400 Network File System Support (SC41-5714)	xi
Who should read this book	xi
AS/400 Operations Navigator	xi
Installing Operations Navigator	xii
Prerequisite and related information	xii
How to send your comments	xiii
Summary of Changes	xv

Chapter 1. What is the Network File System? . . . . .

Introduction . . . . . . . . . . . . . . . . . . .

A Brief History . . . . . . . . . . . . . . . . . .

The Network File System as a File System . . . . . . .

Stateless Network Protocol . . . . . . . . . . . . .

Overview of the TULAB Scenario . . . . . . . . . . .

. . . . . . .	1
. . . . . . .	1
. . . . . . .	3
. . . . . . .	3
. . . . . . .	4
. . . . . . .	4

Chapter 2. The Network File System Client/Server Model	7
Network File System Client/Server Communication Design	7
Network File System Process Layout	8
Network File System Stack Description	8
AS/400 as a Network File System Server	9
Network File System Server-Side Daemons	9
AS/400 as a Network File System Client	11
Network File System Client-Side Daemons	12
NFS Client-Side Caches	12
Chapter 3. NFS and the User-De®ned File System (UDFS)	15
User File System Management	15
Create a User-De®ned File System	15
Display a User-De®ned File System	17
Delete a User-De®ned File System	18
Mount a User-De®ned File System	19
Unmount a User-De®ned File System	20
Saving and Restoring a User-De®ned File System	21
Graphical User Interface	21
User-De®ned File System Functions in the Network File System . . . . . . 22
Using User-De®ned File Systems with Auxiliary Storage Pools	23
Chapter 4. Server Exporting of File Systems	25
What is Exporting?	25
Why Should I Export?	26
TULAB Scenario	26
What File Systems Can I Export?	27
How Do I Export File Systems?	28
Rules for Exporting File Systems	28
CHGNFSEXP (Change Network File System Export) Command	30
Exporting from Operations Navigator	33
Finding out what is exported	36
Exporting Considerations	38

iii

AS/400E specifications

The IBM AS/400E, now more commonly known as IBM i, is a robust and versatile midrange server that has been designed to provide a comprehensive computing solution for businesses of all sizes. First introduced in the late 1980s, the AS/400 series has undergone multiple enhancements and rebranding, with the AS/400E being one of the notable iterations. This powerful platform is closely associated with IBM's commitment to reliability, scalability, and integrated business solutions.

One of the main features of the AS/400E is its highly integrated architecture that combines hardware and software into a cohesive system. This integration allows for seamless operations, reducing the complexity typically associated with managing disparate systems. The system is powered by IBM's proprietary OS/400 operating system, which has evolved into IBM i, featuring advanced capabilities like object-oriented programming, integrated database management, and security features that are essential for enterprise environments.

A key characteristic of the AS/400E is its robust database support, primarily through the use of DB2 for i. This integrated database management system enables efficient data handling and retrieval, facilitating real-time business analytics and reporting. Furthermore, the platform supports a variety of programming languages, including RPG, COBOL, and Java, making it flexible for developers who require diverse tools for application development.

The AS/400E is also known for its exceptional reliability and uptime, making it a preferred choice for critical business applications in industries such as finance, healthcare, and manufacturing. This reliability is backed by advanced error detection and correction mechanisms, as well as redundancy features that help prevent data loss and minimize downtime.

In terms of scalability, the AS/400E can effortlessly expand to accommodate growing business demands. Organizations can increase processing power by adding more resources without significant disruption. This scalability, combined with the system’s built-in virtualization capabilities, allows businesses to optimize resource usage and streamline operations.

Security is another defining feature of the AS/400E. The platform incorporates various layers of security measures, including user authentication, encryption, and comprehensive auditing capabilities, ensuring that sensitive business data is protected against unauthorized access.

Overall, the IBM AS/400E remains a powerful tool in the enterprise computing landscape, providing businesses with an integrated, reliable, and secure solution for their technological needs. Its enduring popularity is a testament to its capability to evolve with changing business requirements while maintaining its core attributes of high performance and stability.

IBM AS/400E manual Contents

Models: AS/400E

Figures

vii

Tables

AS/400E specifications