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IBM Managing QDLS Filesystem and QDLS Interface Filesystem in AS/400E Routers

Models: AS/400E

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2. Export the path to the UDFS mount point (the directory you mounted over in

Step 1)

The previous steps will ensure that the remote view of the namespace is the same

as the local view. Afterwards, the exported UDFS ®le system can be mounted (Type

*NFS) by remote NFS clients. However, you must have previously mounted it on

the local namespace.

 

ADDMFS/MOUNT Display

 

For a display of the ADDMFS (Add Mounted File System) and MOUNT commands,

 

please see ªRMVMFS/UNMOUNT Displayº on page 49.

 

Example

Mount and Export a UDFS on TULAB2

MOUNT TYPE(*UDFS) MFS(©/DEV/QASP02/kate.udfs©) MNTOVRDIR(©/usr©)

This command mounts the user-de®ned ®le system (UDFS) that is named

kate.udfs on the integrated ®le system namespace of TULAB2 over directory/usr.

CHGNFSEXP OPTIONS(©-I -O ACCESS=Prof:1.234.5.6©)

DIR(©/usr©)

This command exports the user-de®ned ®le system (UDFS) that is named

kate.udfs and makes it available to appropriate clients Prof and 1.234.5.6.

 

For more information about the MOUNT and ADDMFS commands, see ªChapter 5.

 

Client Mounting of File Systemsº on page 39. For more information about the

 

EXPORTFS and CHGNFSEXP commands, see ªChapter 4. Server Exporting of File

 

Systemsº on page 25.

Unmount a User-De®ned File System

The Remove Mounted File System (RMVMFS) or UNMOUNT commands will make a mounted ®le system inaccessible to the integrated ®le system namespace. If any of the objects in the ®le system are in use (for example, a ®le is opened) at the time of using the unmount command, an error message will be returned to the user. If

the user has mounted over the ®le system itself, then this ®le system cannot be unmounted until it is uncovered.

Note: Unmounting an exported UDFS which has been mounted by a client will cause the remote client to receive the ESTALE return code for a failed

operation upon the next client attempt at an operation that reaches the server.

RMVMFS/UNMOUNT Display

For a display of the RMVMFS (Remove Mounted File System) and UNMOUNT commands, please see ªRMVMFS (Remove Mounted File System) Commandº on page 48.

For more information about the UNMOUNT and RMVMFS commands, see ªChapter 5. Client Mounting of File Systemsº on page 39.

20OS/400 Network File System Support V4R4

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IBM AS/400E manual Unmount a User-Dened File System, ADDMFS/MOUNT Display, RMVMFS/UNMOUNT Display
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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.