Questions about 4.1


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. 


   Runs on all RISC System/6000(r) (RS/6000(tm)) uniprocessors as well as the
   new symmetric multiprocessor (SMP) and the PowerPC(tm)-based systems,
   except the Model N40 
   Provides enhanced migration tools to smoothly update your AIX Version
   3.2.5 operating system and: 
      Is binary compatible for most AIX 3.2.5-based applications 
      Supports common mode compilation of applications for systems based
      on PowerPC, POWER2(tm) and POWER Architecture 
   Uses a simpler pricing model and provides a variety of packaging and price
   options so you can: 
      Tailor your purchase for client or server functions 
      Separately order software, service and publications as needed 
      Select from different types of software installation media 
   Provides a fully-threaded kernel to support multiprocessing 
   Incorporates streams-based tty subsystem 
   Installs faster and easier due to: 
      Automatic hardware recognition 
      Network Installation Manager (NIM) 
      Installation Assistant 
      A new preview function for software installation 
   Provides the capability to deinstall unused software 
Bases its new interface on the Common Desktop Environment and
   Xwindowing capability with Motif(r) 
   Enhances file systems by providing: 
      Support for file systems greater than 2GB in size 
      Extensions in 512-byte increments 
      Journalled File System (JFS) Berkeley Software Distribution
      (BSD(tm))-style fragmentation 
      JFS compression/decompression 
   Provides Logical Volume Manager (LVM)-based software disk striping
   Provides iFOR/LS system usage monitoring 
   Contains C2 security enhancements 
   Complies with most major industry standards 
   Includes, for application developers: 
      SOMobjects(tm) Base Toolkit 
      Sample Unicode developers toolkit 
      AT&T SVR3.2 curses support 
      Linker, loader, and binder improvements 
   Includes Xstation Manager (in the server package only) 

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 capabiilities 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

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

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

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

Designed to serve

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

      A preventative maintenance strategy for AIX itself reduces system
      down-time for software maintenance 
      LVM permits extension of file systems on the fly 
      The extendable AIX kernel lets you open more files and increase the
      number of processes, users, terminals, and connections on demand
      without a system shutdown 
      The preemptible AIX kernel lets processes be interrupted at any time
      to execute higher priority tasks 
      Access Control Lists (ACLs) help protect your files 
      Password protection and C2 security enhancements help control access
      to system accounts and resources 
      Journalled File System (JFS) is now enhanced with BSD-style disk
      Extensive LAN/WAN networking and protocol support provides
      easier communications across the enterprise 
      Many major industry standards and APIs are supported 
      Your operating system coexists with legacy systems; for example,
      through support for DB2(r)/6000 
      A logical print queue provides print sharing and remote printer access 
      Integrated NFS(tm) supports file sharing and file system mounting 
      Scalability offers extensive growth options 
Performance enhancers 
      A 32-bit operating system 
      Pageable, preemptible, and extendable kernel 
      A variety of optimized compilers 
      Process priority scheduling 
      Memory load-control algorithm to delay new processes when
      thrashing occurs 
      Ability to off-load intensive I/O activities to adapters 
      LVM-based software disk striping 
      Improved system and networking performance by reduced LAN device
      driver path lengths 
   Additional capabilities 
      Multimedia hardware and software options 
      Wide array of I/O support and dynamic I/O additions 
      iFOR/LS utility to manage software usage 
      Multiuser, multi-tasking system 
      Extensive system and network management 
      Network software installation capability 

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

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

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

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: 

   Lower system software costs through AIX 4.1.1's new packaging and
   licensing structure 
   Lower hardware costs through the improved price/performance offered by
   SMP and PowerPC-based systems 
Lower information storage costs through AIX features such as new client
   packaging, JFS fragmentation and compression/decompression 
   More rapid, flexible application development through object- oriented
   programming technology 
   Extended application availability using advanced emulation technology to
   enable users to access many applications from a single system 
   Flexibility and productivity improve- ments inherent in a distributed
   client/server environment that puts information in the hands of those that
   need it 
   Productivity improvement by minimizing the expertise required to use and
   administer information systems through human-centered technology 
   Investment protection through the ability to add AIX systems in concert with
   existing systems and networking facilities 
   Rapid, flexible growth, with the same AIX operating environment supported
   across a wide range of systems 
   Higher service levels for users through higher system availability provided by
   JFS, LVM, and extendable kernel technology 

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 
      Provides the basis for multithreaded application support for
      multiprocessing systems 

Binary compatibility for most AIX 3.2.5-based applications 
      Provides smooth migration and investment protection 
      Lowers the cost for developers to maintain applications -- one binary
      can be produced to support both AIX 3.2.5 and 4.1.1 environments 

Supports common mode compilation across POWER, POWER2, and PowerPC 
      Provides scalability 
      Allows you to use applications on any RS/6000 system, whether it's
based on POWER, POWER2 or PowerPC Architecture 

The base for new systems 
      Places you in position to take advantage of the price, performance, and
      technology of new SMP and PowerPC-based RS/6000 systems 

New client and server packaging/price options 
      Lower your resource and cost requirements by allowing you to buy
      and install only what you need 

File systems larger than 2GB 
      Eliminates the requirement for partitioned files that could adversely
      affect applications and their users 

Designed to provide future base XPG4 and Spec 1170 compliance 
      Improves portability of applications across heterogeneous UNIX

Integrated SOMobjects Base Toolkit 
      Lets you build SOMobjects and applications that you can reuse, which
      saves time and expense 

Linker, loader, and binder improvements 
      Increase performance and efficiency during application development 

JFS dynamic compression/decompression file system fragmentation 
      Save disk space and system resources 
      Migrate your Version 3 file systems (with standard 4096 byte block
      sizes) by interchanging with AIX 4.1.1 file systems 

Installation Assistant and Automatic Hardware Recognition 
      Reduce time, expertise, and resources required for installing AIX 
      Ensure only those software components you need are installed 

Integrated Common Desktop, Motif and Xwindows 
      Provides consistency with industry-standard interfaces 
      Increases user productivity through ease-of-use features 

Software deinstallation flag option for the installp command 
      Lets you remove products you no longer need and reclaim thossystem resources 

iFOR/LS software license compliance tool 
      Provides the ability to track system usage 

C2 security enhancements 
      Provide a higher degree of access security for your systems 

Performance, diagnostic, and data collection tool 
      Lets you isolate and anticipate aspects of your systems that are likely
      to affect performance so that you can take steps to prevent adverse
      impact to your operations 

Network Installation Manager (NIM) 
      Simplifies software distribution and installation to remote clients 

System backup command enhancements 
      Provide more capability and flexibility for your backup and recovery
      Make it easier to install a "cloned" system 

Wider International Language support 
      Accommodates your multinational needs 

Sample Unicode Developer's Toolkit 
      Allows you to develop UCS-based applications 

LVM disk striping capability 
      Supports higher access rates for data using software disk striping

Integrated Xstation Manager support (Server package only) 
Eliminates the need to separately order and install Xstation support 

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 

Support Line: Questions about 4.1 ITEM: BD2020L
Dated: December 1995 Category: N/A
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