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AIX / 370 was IBM's third attempt to offer Unix-like functionality for their mainframe line, specifically the System / 370 ( the prior versions were a TSS / 370 based Unix system developed jointly with AT & T c. 1980, and VM / IX a VM / 370 based system developed jointly with Interactive Systems Corporation c. 1984 ).
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AIX and /
Originally released for the IBM 6150 RISC workstation, AIX now supports or has supported a wide variety of hardware platforms, including the IBM RS / 6000 series and later IBM POWER and PowerPC-based systems, IBM System i, System / 370 mainframes, PS / 2 personal computers, and the Apple Network Server.
The AIX family of operating systems debuted in 1986, became the standard operating system for the RS / 6000 series on its launch in 1990, and is still actively developed by IBM.
Among other variants, IBM later produced AIX Version 3 ( also known as AIX / 6000 ), based on System V Release 3, for their IBM POWER-based RS / 6000 platform.
Since 1990, AIX has served as the primary operating system for the RS / 6000 series ( later renamed IBM eServer pSeries, then IBM System p, and now IBM Power Systems ).
AIX Version 4, introduced in 1994, added symmetric multiprocessing with the introduction of the first RS / 6000 SMP servers and continued to evolve through the 1990s, culminating with AIX 4. 3. 3 in 1999.
In the late 1990s, under Project Monterey, IBM and the Santa Cruz Operation planned to integrate AIX and UnixWare into a single 32-bit / 64-bit multiplatform UNIX with particular emphasis on running on Intel IA-64 ( Itanium ) architecture CPUs.
The original AIX ( sometimes called AIX / RT ) was developed for the IBM 6150 RT workstation by IBM in conjunction with Interactive Systems Corporation, who had previously ported UNIX System III to the IBM PC for IBM as PC / IX.
Much of the AIX v2 kernel was written in the PL / I programming language, which proved troublesome during the migration to AIX v3.
AIX v2 included full TCP / IP networking, as well as SNA and two networking file systems: NFS, licensed from Sun Microsystems, and Distributed Services ( DS ).
AIX PS / 2 running on Virtual PC
AIX PS / 2 ( also known as AIX / 386 ) was developed by Locus Computing Corporation under contract to IBM.
AIX PS / 2, first released in 1989, ran on IBM PS / 2 personal computers with Intel 386 and compatible processors.
AIX and 370
In 1988, IBM announced AIX / 370, also developed by Locus Computing.
AIX / 370 was released in 1990 with functional equivalence to System V Release 2 and 4. 3BSD as well as IBM enhancements.
With the introduction of the ESA / 390 architecture, AIX / 370 was replaced by AIX / ESA in 1991, which was based on OSF / 1, and also ran on the System / 390 platform.
Unlike AIX / 370, AIX / ESA ran both natively as the host operating system, and as a guest under VM.
IBM used OSF / 1 as the basis of the AIX / ESA operating system for System / 370 and System / 390 mainframes.
AIX and was
AIX was the first operating system to utilize journaling file systems, and IBM has continuously enhanced the software with features like processor, disk and network virtualization, dynamic hardware resource allocation ( including fractional processor units ), and reliability engineering ported from its mainframe designs.
AIX Version 1, introduced in 1986 for the IBM 6150 RT workstation, was based on UNIX System V Releases 1 and 2.
A beta test version of AIX 5L for IA-64 systems was released, but according to documents released in the SCO v. IBM lawsuit, less than forty licenses for the finished Monterey Unix were ever sold before the project was terminated in 2002.
AIX was a component of the 2003 SCO v. IBM lawsuit, in which the SCO Group filed a lawsuit against IBM, alleging IBM contributed SCO's intellectual property to the Linux codebase.
AIX 6 was announced in May 2007 and ran an open beta from June 2007 until the general availability ( GA ) of AIX 6. 1 on November 9, 2007.
AIX / ESA, while technically advanced, had little commercial success, partially because UNIX functionality was added as an option to the existing mainframe operating system, MVS, which became MVS / ESA OpenEdition in 1999.
The default shell was Bourne shell up to AIX version 3, but was changed to Korn shell ( ksh88 ) in version 4 in view of XPG4 and POSIX compliance.
* The original Star Desktop evolved into the ViewPoint Desktop and later became GlobalView which was ported to various Unix platforms, such as SunOS Unix and AIX, A Mesa to C compiler was written and the resulting code compiled for the target platform.
This was an entirely new product, not a port of the existing OS / 2, that borrowed certain sections of code from both the existing OS / 2 and AIX products while using an entirely new microkernel code base and adding major features including a system registry and a new driver model.
AIX and IBM's
In 2003, the SCO Group alleged that ( among other infractions ) IBM had misappropriated licensed source code from UNIX System V Release 4 for incorporation into AIX ; SCO subsequently withdrew IBM's license to develop and distribute AIX.
The SCO Group, who argued they were the rightful owners of the copyrights covering the Unix operating system, attempted to revoke IBM's license to sell or distribute the AIX operating system.
At the height of its success, FrameMaker ran on more than thirteen UNIX platforms, including NeXT Computer's NeXTSTEP and IBM's AIX operating systems.
The system ran IBM's AIX operating system.
IBM's AIX uses an Object Data Manager ( ODM ) database to store some system settings,
The most widely used versions of System V today are IBM's AIX, based on System V Release 3, and Sun's Solaris and Hewlett-Packard's HP-UX, both based on System V Release 4.
IBM's AIX operating system is an SVR3 derivative.
The tool appears in IBM's AIX version of Unix and the Solaris Operating System from Sun Microsystems.
AIX, IBM's version of the UNIX operating system, was not a target of SAA, but does have interoperability with the SAA family.
IBM produced versions of SOM / DSOM for OS / 2, Microsoft Windows and various Unix flavours ( notably IBM's own AIX ).
CHRP did not catch on, however, and the only systems to ship with actual CHRP hardware were certain members of IBM's RS / 6000 series running AIX ( though Mac OS 8 claimed to support CHRP-based systems ).
; ESSL: IBM's Engineering and Scientific Subroutine Library, supporting the PowerPC architecture under AIX and Linux.
In 1995, it was added to AIX, IBM's proprietary UNIX platform.
AIX for the RT was IBM's second foray into UNIX.
) The lack of software packages and IBM's sometimes lackluster support of AIX, plus the sometimes unusual changes from traditional UNIX operating system defacto standards caused most software suppliers to be slow to embrace the RT and AIX.
IBM's proposal, PERCS ( Productive, Easy-to-use, Reliable Computer System ), which won them the contract, is based on the POWER7 processor, AIX operating system and General Parallel File System.
The information is currently used in International Components for Unicode, Apple's Mac OS X, OpenOffice. org, and IBM's AIX, among other applications and operating systems.
IBM's own UNIX variant, AIX is not supported since the OpenPower servers are not licensed for this operating system.
IBM PowerHA ( formerly HACMP ) is IBM's solution for high-availability clusters on the AIX Unix and Linux for IBM System p platforms and stands for High Availability Cluster Multiprocessing.
IBM's HACMP product was first shipped in 1991 and is now in its 20th release-PowerHA SystemMirror for AIX 7. 1
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