Introduction to Iseries 1

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AS/400, iSeries , i5 serveroverview



Introduction to AS/400

1970 - The architecture of AS/400 is born in a Ph.D.dissertation by Frank Soltis

1978 - IBM System/38 announced; shares the uniquetechnology-independent architecture of AS/400

1983 - IBM System/36 announced

1988 - IBM AS/400 announced, combining the applicationprogram compatibility of the System/36 with the technology-independent architecture of the System/38

1989 - IBM announces a new high-end AS/400 Model B70




1990 - Low-end AS/400 C models announced (first to marketwith 3.5-inch disk drive units).

AS/400 Models C04 and C06 announced.

AS/Entry Model Y10 announced

1991 - AS/400 D Series announced; new servers deliver morethan 50 percent price/performance improvement.

AS/400 Model D80 is the first n-way processor for AS/400.

OS/400 Version 2 Release 1 (V2R1) announced

1992 - OS/400 Version 2 Release 2 (V2R2) ships three monthsahead of schedule.

AS/400 is first to market with RAID-5 for business computing




1996 - AS/400 Advanced Entry Model 150announced.

AS/400 provides e-business capability with supportof Web-serving function.

Version 3 Release 2 (V3R2) and Version 3 Release7 (V3R7) of OS/400 are certified Year 2000-ready by

the ITAA (Information Technology Association ofAmerica), making OS/400 the first operating systemin the industry to achieve this certification




1994 - AS/400 Advanced Series announced. The relational database that has been integrated into OS/400

since 1988 is given a name-- DB2/400 -- making it instantly theworld's most widely installed relational database.

IBM ships the first system to include the 64-bit RISC chip -- theAS/400 Advanced 36..

OS/400 Version 3 Release 1 (V3R1), one of the largest releases ofnew software ever, greatly enhances AS/400's strength inclient/server with new Client Access software, the PCcoprocessor (called the Integrated PC Server) and the IntegratedFile System (allowing multiple file types to be supported withinOS/400

TCP/IP performance greatly improved, and POSIX enhancementsmade to OS/400




1997 - IBM announces AS/400e series,including 12-way processors, making the

new high-end system 4.6 times morepowerful than the previous largest system.




1998 -

500,000th AS/400 system installed; 183,000 customersworldwide.

Version 4 Release 3 (V4R3) announced.

IBM and Lotus announce native Lotus Domino for AS/400.

OS/400 strengthens its e-business capabilities by providingsupport for 27,030 Lotus Domino users (the largest number ofDomino users on a single system); Java enablement; Internet

business transaction security In just 10 months of availability, AS/400 becomes the second

leading platform for Lotus Domino, ahead of all UNIX serverscombined.




OS/400 Version 4 Release 4 (V4R4) delivers Net.Commercewith SET (secure transaction protocol) for secureelectronic commerce transactions over the Web.

New AS/400e 7xx series consolidates multiple server

models into smaller, more powerful family; trulytransformed into a back-office and front-office server, all inone box. The new servers offers customers an average 30percent price/performance improvement.

IBM announces the AS400e Dedicated Server for Domino,the industry's first server designed specifically for LotusDomino workloads. Customers can connect users throughe-mail, run multiple Domino applications, collaborate onprojects or host Web sites, all on a single server




2000 - IBM introduces OS/400 Version 4 Release 5(V4R5) and new AS/400 8xx models, the world's firstservers powered by microprocessors made with

silicon-on-insulator transistors and copper wiring. The 24-way AS/400e Model 840 shatters industry

benchmarks: .

Oct. 3, 2000: AS/400 becomes eServer iSeries, asIBM introduces the IBM eServer line of products forthe next generation of e-business




• 2001 - IBM announces OS/400 Version 5 Release 1(V5R1), with new server consolidation solutionsdesigned to help mid-sized customers manage

infrastructure complexity and reduce the cost ofrunning an e-business by 20 to 25 percent.Highlights include support for Linux, the IntegratedxSeries Adapter, dynamic logical partitioning and theability to manage iSeries remotely using wirelessdevices.




2004 – iSeries was renamed to i5server,thisserver runs on Power5 Processor.




The IBM System/38 was a computer , introduced in 1978 andcommercially available in August 1979 , The System/36 was aminicomputer marketed by IBM from 1983.

The first AS/400 systems were delivered in 1988 , it’s a

combination of system/38 & system/36. IBM renamed the AS/400 to iSeries in 2000 The product line was further extended in 2004 with the

introduction of the i5 servers, the first to utilize the IBMPOWER5 processor.

The AS/400 was the first general-purpose computer system toattain a C2 security rating from the NSA (National Securityagency), and in 1995 was extended to employ a 64-bitprocessor and operating system.





Iseries hardware overview

There are two components to the operating system

software on an iSeries server. This importantdistinction is unique in the industry in itscompleteness of implementation. The two

components are System Licensed Internal Code(SLIC) and Operating System/400 (OS/400).

SLIC provides the TIMI, process control, resourcemanagement, integrated SQL database, security

enforcement, network communications, file systems,

storage management, JVM, and other primitives.SLIC is a hardened, high-performance layer ofsoftware at the lowest level, much like a Unix kernel,only far more functional.



Iseries hardware overview

Application programs on an iSeries server areunaware of the underlying hardware characteristics,because of the iSeries layered architecture

approach, Technology Independent MachineInterface (TIMI). TIMI frees application code fromworrying about processor technology, such asmoving from 32- to 64-bit or Complex Instruction Set

Computing (CISC) to Reduced Instruction SetComputing (RISC).





Single level storage



iSeries partition overview



i5 server overview



I5 overview

Hypervisor : Serviceability (RAS) The hypervisor is a common firmware layer between

the hardware and the operating system partitions.This layer provides support for system levelfunctionality, virtualization, logical partitionmanagement, on-demand resource management,

FSP: The Flexible Service Processor (FSP) is ahardware device connected to the system for

interfacing with the master processors. It providesSystem Services, HMC communication services &Control Panel Services.



Console type

Twin axial console

Operation console (LAN)

Operation console (Direct) HMC



Twinaxial Console



LAN Operation console



Local console through dialup support



Remote console through dialupnetwork



Operation console (direct)



HMC



Logical partition on AS/400 server

Supports logical partition on selected modelwith multiple processor

Support Windows on Hosted partition



LPAR on iSeries Server

Supports LPAR .

On demand processor

Supports micro partitioning Support Linux, windows partition

Dynamic movement of resources



LPAR on i5 server

Supports LPAR (HMC must)

On demand processor, memory

Supports micro partitioning Supports Linux, windows, AIX

Dynamic movement of resources

Uncapped partition support.



LPAR on i5 server

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Introduction to Iseries 1