AIX Version 4.1.1

... profits from our experience


Why should you care about an operating system?

When you turn on the tap to get a glass of water, you don't think about the maze of pipes, pumps, and valves that bring the water to you. The same should be true of the information systems you use to run your business; they should deliver the information you need, when you need it and in the form you require, without demanding expertise in the "plumbing" of the underlying operating system.

However, your choice of an operating system does have a major impact on how you'll be able to run your business; it can become a help or a hindrance. You should care about your operating system only insofar as it provides you the ability to get on with real work.

IBM(r) designed the Advanced Interactive eXecutive (AIX(r)) Operating System Version 4.1.1 to support real work for real people.


A mature UNIX-based operating system

AIX Version 4.1.1 is an industrial strength UNIX(r)-based operating system with roots in UNIX System V and BSD 4.3. AIX 4.1.1 also conforms to the Portable Operating System Interface for Computer Environments (POSIX(tm)) IEEE 1003.1-1990 and is consistent with IBM's Open Blueprint client/server computing model. AIX 4.1.1 is designed to provide future compliance with the emerging Spec 1170 standard and the base XPG4 standard.

However, while standards compliance is essential, it's the added qualities that make the difference between a lab environment and a commercially viable platform.

Building upon innovations it has brought to the market, such as LVM and JFS, IBM continues to bolster the industrial strength qualities of AIX. For example, AIX Version 4.1.1 now supports file systems over 2GB in size and has the capabilities to easily deinstall unused software, optimize the use of expensive disk resources, and take advantage of modern disk striping techniques. However, the enhancements introduced with AIX 4.1.1 go deeper than new function. The very structure of AIX has evolved to meet the needs of today's client/server environment.

The AIX client and server packaging options let you choose, and pay for, only the AIX you need. More flexible and granular licensing options let you individually select software, support, publications, and installation media (including CD-ROM) while better matching costs to your actual system usage. You can also better monitor and regulate use of both your AIX systems and your applications with the iFOR/LS facility.

These new packaging and licensing options offer potential savings on software license costs as well as system resources required.

To be useful it must be usable

Many systems fall down in their efforts to shield the customer from the "plumbing" underneath. This is particularly true during the initial installation of the system itself. Here, again, IBM applies its real world, end-user environment experience to AIX Version 4.1.1.

The Installation Assistant, a graphical user interface facility available through the Visual System Management (VSM) tools, guides even novice users through the initial installation process making it faster and easier to install AIX and other applications.

Pre-selection of necessary operating system components reduces the decision-making and, therefore, the expertise required of the user.

What's more, to further speed up and simplify installation, the system automatically detects the hardware devices attached to the system and installs only the required device drivers. It even detects whether the software is being installed on a uniprocessor or an SMP and loads the appropriate kernel. If it detects an appropriate graphics adapter, the system loads Xwindows.

To go even further, the new Network Installation Manager (NIM) facility can virtually eliminate the need for end users to deal with software installation. With NIM, you can install software from a central site to multiple clients.

Once installed, the integrated Xwindowing capability with Motif and a new, intuitive desktop based on the emerging Common Desktop Environment standard enhances the system's basic usability.

For graphics users, separately orderable OpenGL/GL and PEX/PHIGS API products support entry 3D graphics on 2D workstation hardware and on IBM's POWER 3D accelerators.

For system documentation, the InfoExplorer(tm) product provides a usability bonus in the form of on-line system documentation. In addition, you can use the InfoCrafter(r) product to create and add user-specific documentation to this on-line library, thereby eliminate the age-old problem of missing or out-of-date manuals.

Usability also requires access to applications. With binary compatibility for nearly all of the 10,000+ existing AIX applications, AIX 4.1.1 offers a rich portfolio of business solutions. What's more, you can use optional IBM and third-party products to run many favorite DOS and Windows-based applications as well.

In addition to working with the interfaces and applications you are accustomed to, AIX 4.1.1 offers wider internationalization support than ever, supporting over 61 language territories. This addresses the requirement in today's multinational companies to interact with systems using the native languages and character sets -- further evidence of IBM's continued attention to the end user in today's global enterprises.

Designed to serve

While usability is of paramount importance to clients, AIX 4.1.1 maintains many key attributes required of server systems:

These features provide all the qualities you should expect in a premier server platform.

How we manage it

An essential link between client and server systems involves tools and facilities to manage this complex environment. The AIX platform offers a comprehensive set of products to manage all aspects of the system and network, including:

These facilities extend AIX's management capabilities across multiple IBM and non-IBM LAN-based and mainframe systems. The AIX platform provides an unmatched level of coexistence and interoperability.

AIX Version 4.1.1: A link to the future

No group of users is more important to IBM than our existing AIX customers. As such, a prerequisite for the introduction of AIX Version 4.1.1 was a clear migration path for systems, applications, and users.

For nearly all existing AIX 3.2.5-based applications, upward binary compatibility is provided. Documentation, education, and services are available to help migrate remaining applications where compatibility issues exist.

If you are updating from the AIX 3.2.5 operating system itself to AIX 4.1.1, enhanced migration tools help smooth the transition.

Like AIX 3.2.5, AIX 4.1.1 supports common mode compilation, a means for application developers to ensure their applications can be run unchanged across all RS/6000 systems, whether POWER, POWER2, or PowerPC based.

AIX 4.1.1 supports the new RS/6000 PowerPC-based and symmetric multiprocessor (SMP) models. These additions extend AIX's support over an unprecedented range of processor power, all on a single, binary-compatible version of AIX.

Through the immediate support of most existing AIX 3.2.5 applications, common mode operation to support all RS/6000 processors, assistance for migrating remaining applications, and migration tools for the operating system itself, AIX 4.1.1 offers substantial returns for minimal investment.

For developers, the AIX 4.1.1 platform offers a comprehensive set of traditional compilers, development tools, and an integrated SOMobjects Base Toolkit to begin exploiting the reusability and portability advantages of object technology. With the planned additions of OpenDoc and Taligent framework technologies to its platform, AIX 4.1.1 will become the premier object oriented programming development environment.

OpenDoc and Taligent frameworks are also integral Workplace technologies. AIX 4.1.1 will become the focus for continued AIX integration of Workplace technologies.

Technology as an investment

As with any other business investment, operating system technology must be viewed based on its potential returns. For an operating system, the returns can be operational enhancements or reduced costs. These, in turn, can result in a significant competitive advantage for your business.

So the question becomes, what specific benefits can be realized through IS technology, in this case, AIX Version 4.1.1? Some potential examples include:

The introduction of technology into information systems should be performed with an eye toward the real, tangible benefits it will provide. Applying our experience in information systems, the AIX platform uses technology to business advantage.

Features and Benefits

Fully-threaded kernel

Binary compatibility for most AIX 3.2.5-based applications

Supports common mode compilation across POWER, POWER2, and PowerPC

The base for new systems

New client and server packaging/price options

File systems larger than 2GB

Designed to provide future base XPG4 and Spec 1170 compliance

Integrated SOMobjects Base Toolkit

Linker, loader, and binder improvements

JFS dynamic compression/decompression file system fragmentation

Installation Assistant and Automatic Hardware Recognition

Integrated Common Desktop, Motif and Xwindows

Software deinstallation flag option for the installp command

iFOR/LS software license compliance tool

C2 security enhancements

Performance, diagnostic, and data collection tool

Network Installation Manager (NIM)

System backup command enhancements

Wider International Language support

Sample Unicode Developer's Toolkit

LVM disk striping capability

Integrated Xstation Manager support (Server package only)
For more information about AIX Version 4.1.1, or the RS/6000 and AIX family, call your IBM marketing representative, IBM Business Partner, or IBM Direct: 1 800 IBM-CALL (1 800 426-2255). In Canada, call 1 800 363-RISC (1 800 363-7472).

You can also call 1 800 IBM-4FAX (1 800 426-4329), and more information will be faxed immediately to your location.

If you have access to the Internet, you can find additional information on IBM's Worldwide Web server at

Special AIX 4.1 Information for Developers
AIX, DB2, IBM, InfoCrafter, and RISC System/6000 are registered trademarks of International Business Machines Corporation.
InfoExplorer, POWER2, PowerPC, RS/6000 and SOMobjects are trademarks of International Business Machines Corporation.
UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Limited.
All other products are trademarks or registered trademarks of their respective companies.

(c)International Business Machines Corporation 1994
IBM Corporation
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Produced in the United States of America
All Rights Reserved

References in this publication to IBM products or services do not imply that IBM intends to make them available in all countries in which IBM operates.

Photographs show engineering and design models. Changes may be incorporated in production models.

This equipment is subject to FCC rules. It will comply with the appropriate FCC rules before final delivery to the buyer.

G221-4234-01 / G2214234
Last modified: Mon Oct 3 15:58:37 1994

Copyright 1994 International Business Machines