What File Systems Can I Export?

Chris Admin can export a directory containing only the database ®les with statistics of the bridge construction safety records. This operation can be performed without fear of unknown users accessing the sensitive data. Chris Admin can use the export command to allow only selected client systems to have access to the ®les. This way, both groups of students will be able to mount and access the same data and work with it on their separate, different workstations.

You can export any of the following ®le systems:

vªRootº (/)

vQOpenSys

vQSYS.LIB

vQDLS

vQOPT

vUDFS

You cannot export other ®le systems that have been mounted from remote servers. This includes entire directory trees as well as single ®les. AS/400 follows the general rules for exporting as detailed in ªRules for Exporting File Systemsº on page 28. This set of rules also includes the general NFS ªdownstreamº rule for exporting ®le systems. Remember that whenever you export a ®le system, you also export all the directories and objects that are located hierarchically beneath (ªdownstreamº from) that ®le system.

The CHGNFSEXP or EXPORTFS command is the key for making selected portions of the local user view part of the remote client view.

Exported ®le systems will be listed in the export table built from the/etc/exports ®le. These ®le systems will be accessible to client mounting, assuming the client has proper access authorities. Users will be able to mount and access exported data as if it were local to their client systems. The administrator of the server can also change the way ®le systems are exported dynamically to present remote clients with a different view of ®le systems.

Before exporting, a remote client cannot view any local server ®le systems.

Figure 19. Before the server has exported information

Chapter 4. Server Exporting of File Systems 27

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 What File Systems Can I Export?, Before the server has exported information

Models: AS/400E