Figure 16. A Windows 95 view of using the DSPUDFS (Display UDFS) command

 

 

This window displays the properties of a user-de®ned ®le system. For more

 

 

information about the DSPUDFS command, see ªDisplay a User-De®nedFile

 

 

Systemº on page 17.

 

 

 

 

 

User-De®ned File System Functions in the Network File System

 

To export the contents of a UDFS, you must ®rst mount it on the local namespace.

 

Once the Block Special File (*BLKFS) mounts, it behaves like the ″root″ or

 

QOpenSys ®le systems. The UDFS contents become visible to remote clients when

 

the server exports them.

 

It is possible to export an unmounted UDFS (*BLKSF object) or the ASP in which it

 

resides. However, the use of such objects is limited from remote NFS clients. You

 

will have minumal use of mounting and viewing from most UNIX clients. You cannot

 

mount a *BLKSF object on AS/400 clients or work with them in NFS mounted

22OS/400 Network File System Support V4R4

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IBM AS/400E manual User-Dened File System Functions in the Network File System
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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.
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