Field Name

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overlay

Shows

the

name of

the

overlay

to

be

converted

to

a

physical

 

member.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Library

Shows

the name

of

the

library

in

which

the

overlay

resides.

Format of

data

Specifies

how

data

 

is

to

be

 

placed

in the

physical

file

 

The

possible

values

are:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 One

record has one structured field. The padding

character

 

 

binary

0s.

The

record

length

of

the file

using

fixed

format

 

 

longest

length

of

the

AFPDS structured fields in the

overlay.

 

 

length of the existing file is smaller than the length of th

 

 

structured field, an error message is displayed. If the le

 

 

existing file is larger than the longest length

of

the

struc

 

 

padding

characters

are

added

 

to

the

end

of

the

records.

 

 

format

is

for

the

VM

or the

MVS system.

 

 

 

 

 

 

2The structured fields are filled continuously and folded. Only last record has padding characters; the padding characters binary 0s. Any record length of the existing file is allowed. created record length of the file is 256 bytes. This forma OS/2*.

 

 

This

is

a

required

parameter.

 

 

 

 

 

 

 

 

 

 

 

 

To file

 

Specifies

the

qualified

name

of

 

the

 

physical

file

being

use

 

 

overlay

data.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The

possible

values

 

are:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*VM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies

that

the

name

OVLY38PP

is

used. It

will be

a

valid

 

 

type

for

an

overlay

on

the

VM

system.

 

 

 

 

 

 

 

 

 

*MVS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies

that

the

name

O1xxxxxx

is

used. The

 

'xxxxxx'

is t

 

 

six

valid

characters

of

the name Overlayspecifiedpromptin. Itthe

 

 

 

 

 

will be a valid member

name

for

 

an

overlay

on

 

the

MVS

system

 

 

file-name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies

the

file

name

in

which

to

 

place

the

 

overlay data.

Library

 

The

possible

values

are:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*CURLIB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The

current

library

for

the

job

is

used

to

locate

the

fil

 

 

is specified as the current library for the

 

job,

QGPL

is

 

 

library-name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specify the library where the file resides.

 

 

 

 

 

 

Member

Specifies

the

name

of

the

physical

 

file

member which

is

filled

 

 

overlay

data.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The

possible

values

 

are:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*OVL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifies that the name of the overlayOverlayshownfieldin theis

 

 

 

 

used.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

member-name

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specify

the

member

name

to

place

the

overlay

 

data.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

340 AFP Utilities for AS/400 User’s Guide

Page 359 Page 361
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Image 360
IBM AS/400 manual File-name, Library-name
Page 359 Page 361

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.
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