3.Options are case-insensitive.

4.Options that are not speci®ed will be processed as the defaults described in ªFormatting the HOSTOPT (Host Options) Parameterº on page 95.

Examples of Formatting /etc/exports with HOSTOPT Parameter

Example 1: Exporting to a host and specifying all options.

/home/joe access=sammy

\

#HOSTOPT HostName=sammy,

\

PathNameCodePage=367, \

DataFileCodePage=850, \

NoWaitForWrites

A user exports /home/joe to host sammy, specifying code pages for both path names and data ®les. Data written is not guaranteed to be written immediately to disk (asynchronously). Note the use of the continuation character '\' to break the long entry into more readable lines.

Example 2: Exporting with options to multiple clients and netgroups.

/home/selfe access=sammy:rainfall:dept-OA5 \

#HOSTOPT HostName=sammy,\

PathNameCodePage=367:\

hostname=rainfall,\ NoWaitForWrites

A user exports /home/selfe to host sammy, rainfall, and the netgroup dept-OA5. For the host sammy, a code page for path names has been speci®ed. For the host rainfall, data is not guaranteed to be written immediately (asynchronously) to disk.

Example 3: Exporting a directory within QSYS.LIB with options.

/qsys.lib/jon.lib access=dept-OA5 \

#HOSTOPT HostName=wheatley, \ DataFileCodePage=367

A user exports /qsys.lib/jon.lib to the netgroup dept-OA5. A codepage is

speci®ed for data®les. Because this directory exists in the QSYS.LIB ®le system, NFS will use the open() API with the O_TEXTDATA and O_CODEPAGE options to work with data ®les. Note thatwheatley will use these options only if it is de®ned as a member of the netgroup dept-OA5.

/etc/netgroup File

This ®le contains de®nitions for netgroups. A netgroup is a mechanism used to associate a list of systems with one name. For example:

department-OA5 (larrys-box,,),(safe-house,,) my-hosts (rainfall,,),(sammy,,),(department-OA5,,)

The above example de®nes the netgroupmy-hosts, which is a list of the following: rainfall, sammy, larrys-box, and safe-house. Note that larrys-boxand safe-housewere included because department-OA5is itself a netgroup. Netgroups can be

nested within other netgroups.

Traditionally, netgroups are de®ned as:

netgroup-name (host-name,user-name,domain-name)

96OS/400 Network File System Support V4R4

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IBM AS/400E manual Examples of Formatting /etc/exports with Hostopt Parameter, Etc/netgroup File

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.