AS400直到现在都还是IBM商用机器的典范之作!目前主要用户是大型制造业、银行、证券、保险等。现在合并到了IBMPowerSystems。PowerSystems is the name ofIBM'sPowerArchitecture-based server line.
AS400历史
The platform was first introduced as the AS/400 on June 21,1988 and later renamed to theeServer iSeries in 2000. As partof IBM's Systems branding initiative in 2006, it was again renamed toSystem i. The codename of theAS/400 project was"Silver Lake", named for the lake in downtown Rochester,MN, where development of the system took place.
In April 2008, IBM announced its integration with the Systemp platform. The unified product line is called IBMPower Systems and features support for the IBMi (previously known as i5/OS or OS/400), AIXand Linux operatingsystems. Power4 or older hardware ran OS/400 exclusively.
OS/400介绍
OS/400 is IBM's operatingsystem for its AS/400 and AS/400e line of business computers.Because OS/400 is closely attuned to the AS/400 hardware design andgenerally comes as part of the basic package, there is no alternativeoperating system to compete with it. OS/400 isbuilt to operate withthe AS/400 logical partition (LPAR)architecture, in which multiple instances of the operating system canrun concurrently in different partitions. Among otheruses, LPAR isuseful when migrating to a new release. The old production system cankeep operating in one partition while a new system is being tested.
As the AS/400 has evolved to meet the latest trends in businessand information technology, OS/400 and its related software has addedsupport for:
Applications written in the Javaprogramming language
The ability to run Windows 2000/NTapplications (when certain other products are installed)
The Portable Application SolutionsEnvironment (PASE), which supports a subset of theAIXenvironment so thatUNIXapplications can be ported and run on the AS/400
Lotus Domino,which provides groupware and e-mail from Lotus Notes applications ora standard Web browser
i5/OS
i5/OS is the name IBM has given to its newest release of OS/400V5R3. i5/OS runs on IBM's i5servers, which are based on IBM's Power5 microprocessors.
IBM i
IBM i (formerly known as i5/OS®) running on an IBM Power Systems™server offers a highly scalable and virus resistant architecture witha proven reputation for exceptional business resiliency.
教程:http://man.chinaunix.net/unix/IBM/as400/index.htm
参考文档http://www-03.ibm.com/systems/power/