AS/400

Host Definition

 

AS/400 Prompt

Parameter

Statement

Host Parameter

 

 

 

 

Mode description

MODD

MODEENT

LOGMODE

name

 

 

AS/400 mode description name specified on the AS/400

 

 

 

 

 

 

CRTMODD command (MODD parameter) must be

 

 

 

defined in the host logon mode table using the

 

 

 

LOGMODE parameter on the MODEENT macro

 

 

 

instruction. The mode name must also be included in

 

 

 

the CICS/VS terminal control table (DFHTCT)

 

 

 

MODENAM parameter.

 

 

 

 

Class-of-service

COSD

MODEENT

COS

description name

 

 

AS/400 class-of-service description name specified on

 

 

 

 

 

 

the AS/400 Create Class-of-Service Description

 

 

 

(CRTCOSD) command (COSD parameter) and

 

 

 

CRTMODD command (COS parameter) must be

 

 

 

defined in the host logon mode table using the COS

 

 

 

parameter on the MODEENT macro instruction. The

 

 

 

class-of-service description must also be defined in the

 

 

 

VTAM class-of-service table.

 

 

 

 

For more information on AS/400 parameters, see Communications Configuration .

Examples: Connecting AS/400 to a host system

Configuration parameters must be coordinated when you connect an AS/400 system to a host system. Example 1: AS/400 to host system over a nonswitched SDLC line.

This diagram shows the AS/400 values that need to match the VTAM values when you use a nonswitched SDLC line.

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IBM manual Examples Connecting AS/400 to a host system, AS/400 Host Definition AS/400 Prompt, Modd Modeent Logmode

AS/400 specifications

The IBM AS/400, now known as the IBM iSeries, is a midrange computer system that has been a cornerstone of enterprise computing since its introduction in 1988. Designed to provide a robust platform for business applications, the AS/400 is celebrated for its reliability, scalability, and integrated database capabilities.

One of the key features of the AS/400 is its Integrated Operating Environment, which blends hardware and software resources seamlessly. This integration allows businesses to execute diverse workloads, ranging from traditional applications to modern web-based services, all on a single platform. The operating system, OS/400 (now IBM i), offers a rich set of APIs and tools for developers, simplifying application development and management.

Another standout characteristic of the AS/400 is its built-in database, DB2 for i. This powerful relational database management system allows for efficient data handling and provides advanced features such as support for SQL, XML, and JSON, making it easier for businesses to manage their data and integrate it with other systems. The database's tight integration with the operating system enables high performance and security.

In terms of scalability, the AS/400 can accommodate small businesses as well as large enterprises, with the ability to support hundreds of users simultaneously. Its architecture allows for easy upgrades in hardware, meaning that organizations can scale their systems without replacing the entire infrastructure.

Security is another critical attribute of the AS/400. With a sophisticated security model, it offers built-in user authentication, access control, encryption, and auditing capabilities to protect data and applications from unauthorized access.

The AS/400 also supports multiple programming languages, including RPG, COBOL, Java, and PHP, giving organizations the flexibility to choose the development tools that best fit their needs. This diversity helps maintain legacy applications while also developing new ones that leverage modern technologies.

Moreover, the platform supports both traditional green-screen interfaces and modern graphical user interfaces, allowing organizations to transition smoothly into contemporary user experience paradigms.

Overall, the IBM AS/400 stands out as a resilient, flexible, and secure computing platform that enables organizations to effectively manage their business operations, streamline processes, and adapt to changing market demands. Its unique combination of integrated features and capabilities ensures that it remains relevant in today's fast-paced technology landscape.