AS/400 System Architecture: Underlying Strength of the AS/400e
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AS/400 System Architecture: Underlying Strength of the AS/400e
Object-Based
An object is a container. Everything the system uses—user and system data structures—is
packaged in one of these containers. The objects are encapsulated, which means that you
cannot see inside. Inseparable from an object is the list of valid ways in which that object can
be used.
There are two important consequences of an object-based design. The first is that a system
built around an object model supports machine independence. This means that technology
changes can be made in the environment without affecting application programs. The second
consequence is that an object-based design delivers a high level of system integrity and
security.
All objects are structured with a common object header and a functional portion dependent
on object type. Therefore, on the AS/400e system, instructions can only work on what they
are supposed to work. You cannot have data treated as executable code (so that the
processor tries, for example, to execute someone's shoe size) or executable code treated as
data (by having something written into the middle of it).
Certain instructions apply to all objects, while other instructions work only on specific types of
objects. It is not possible to misuse an object, unlike the situation that exists on non-AS/400e
systems without an object-based approach.
Summary
The AS/400e offers a brilliant architecture that is not found on simply any business computing
system. There are many examples of where the AS/400e's architecture has delivered on its
promise of making the most advanced technology readily and continuously available to its
customers. For example, the AS/400e has enabled its customers to:
• Provide Internet access to existing AS/400 applications. Through a product known as
HTML Gateway (which resides within AS/400's operating system), Internet users can
access and run AS/400 applications.
• Integrate diverse environments (such as Microsoft Windows NT and Lotus
Notes/Domino) into AS/400e. All customer solutions require a range of hardware and
software products from a variety of vendors. The AS/400e, through integrating these
mixed environments, simplifies the task of managing them.
• Change to the on-chip copper-wiring processor technology or to Silicon on Insulator
technology for the medium and high end servers.
• Implement PCI hot-plugging technology for higher availability, and use other
performance boosting innovations such as the High Speed Link and new high speed
LAN adapters.
Summary of Contents for AS/400e
Page 2: ......
Page 3: ...AS 400e System Handbook Document Number GA19 5486 20 May 22 2000...
Page 5: ...Table of Contents...
Page 6: ...Table of Contents...
Page 28: ...xxii AS 400e System Handbook...
Page 29: ...23 Introduction...
Page 30: ...Introduction...
Page 40: ...Introduction 10 AS 400e System Handbook...
Page 41: ...11 Concepts and Architecture...
Page 42: ...Concepts and Architecture...
Page 55: ...25 Workload and Performance...
Page 56: ...Workload and Performance...
Page 67: ...37 AS 400 Advanced Technology...
Page 68: ...AS 400 Advanced Technology...
Page 98: ...AS 400e Advanced Technology 68 AS 400e System Handbook...
Page 99: ...69 AS 400 Future Announcements...
Page 100: ...AS 400 Future Announcements...
Page 104: ...AS 400 Future Announcements 74 AS 400e System Handbook...
Page 105: ...75 AS 400e Server Summary...
Page 106: ...AS 400e Server Summary...
Page 124: ...IBM AS 400e server 94 AS 400e System Handbook...
Page 125: ...95 AS 400e Server 250...
Page 126: ...AS 400e Server 250...
Page 145: ...115 AS 400e Server 270...
Page 146: ...AS 400e Server 270...
Page 164: ...AS 400e server 270 134 AS 400e System Handbook...
Page 165: ...135 AS 400e Dedicated Server for Domino...
Page 166: ...AS 400e Dedicated Server for Domino...
Page 172: ...AS 400e Dedicated Server for Domino 142 AS 400e System Handbook...
Page 173: ...143 AS 400e Server 820...
Page 174: ...AS 400e Server 820...
Page 191: ...161 AS 400e Server 830...
Page 192: ...AS 400e Server 830...
Page 205: ...175 AS 400e Server 840...
Page 206: ...AS 400e Server 840...
Page 220: ...AS 400e server 840 190 AS 400e System Handbook...
Page 221: ...191 AS 400e Server SB2...
Page 222: ...AS 400e Server SB2...
Page 229: ...199 AS 400e Server SB3...
Page 230: ...AS 400e Server SB3...
Page 239: ...209 Expansion and Migration Towers...
Page 240: ...Expansion and Migration Towers...
Page 257: ...227 Customer Install Features...
Page 258: ...Customer Install Features...
Page 268: ...Customer Install Features CIF 238 AS 400e System Handbook...
Page 269: ...239 I O Processor...
Page 270: ...I O Processor...
Page 280: ...I O Processor 250 AS 400e System Handbook...
Page 281: ...251 I O Adapter...
Page 282: ...I O Adapter...
Page 307: ...277 PCI Card Placement Rules...
Page 308: ...PCI Card Placement Rules...
Page 337: ...307 Upgrades to AS 400e Server 8xx...
Page 338: ...Upgrades to AS 400e Server 8xx...
Page 360: ...Upgrades to AS 400e server 8xx 330 AS 400e System Handbook...
Page 361: ...331 Internal Storage...
Page 362: ...Internal Storage...
Page 387: ...357 Removable Storage...
Page 388: ...Removable Storage...
Page 410: ...Removable Storage Media Devices 380 AS 400e System Handbook...
Page 411: ...381 Magnetic Media Controllers...
Page 412: ...Magnetic Media Controllers...
Page 432: ...Magnetic Media Controllers 402 AS 400e System Handbook...
Page 433: ...403 External Disk Storage...
Page 434: ...External Disk Storage...
Page 438: ...2105 Enterprise and Versatile Storage Servers 408 AS 400e System Handbook...
Page 439: ...409 Enclosures...
Page 440: ...Enclosures...
Page 445: ...415 Peripherals...
Page 446: ...Peripherals...
Page 478: ...Peripherals 448 AS 400e System Handbook...
Page 479: ...449 OS 400...
Page 480: ...OS 400...
Page 560: ...Operating System 400 5769 SS1 530 AS 400e System Handbook...
Page 561: ...531 Database...
Page 562: ...Database...
Page 587: ...557 Networking...
Page 588: ...Networking...
Page 623: ...593 Lotus...
Page 624: ...Lotus...
Page 646: ...Lotus Enterprise Integrator 5769 LNP 616 AS 400e System Handbook...
Page 647: ...617 Systems Management...
Page 648: ...Systems Management...
Page 669: ...639 Application Development...
Page 670: ...Application Development...
Page 704: ...IBM Licensed Programs Application Development Products 674 AS 400e System Handbook...
Page 705: ...675 Office and Printing...
Page 706: ...Office...
Page 728: ...IBM Licensed Programs Office and Printing Products 698 AS 400e System Handbook...
Page 729: ...699 Earlier Model Summary...
Page 730: ...Earlier Model Summary...
Page 788: ...Summary of All Earlier AS 400 Models 758 AS 400e System Handbook...
Page 789: ...759 Special Notices and Publications...
Page 790: ...Special Notices and Publications...
Page 794: ...Special Notices 764 AS 400e System Handbook...
Page 802: ...AS 400 Documentation 772 AS 400e System Handbook...
Page 805: ...775 Abbreviations...
Page 806: ...Abbreviations...
Page 811: ...781 Index...
Page 812: ...Index...
Page 830: ......
Page 831: ...1 5 spine 1 5 1 998 789 1051 pages AS 400e System Handbook Version 4 Release 5...
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