The AIX System
In 1983, Microsoft had a plan to make a Xenix MS-DOS’s multiuser successor, and they created Xenix-based Altos 586 with 512 KB RAM and 10 MB hard drive by this year with cost $8,000.
By 1984, 100,000 UNIX installations around the world for the System V Release 2.
In 1986, 4.3BSD was released that included internet name server and the AIX system was announced by IBM with Installation base over 250,000.
AIX is based on Unix System V, this system has BSD roots and is a hybrid of both. AIX was the first operating system that introduced a journaled file system (JFS) and an integrated Logical Volume Manager (LVM). IBM ported AIX to its RS/6000 platform by 1989. The Version 5L was a breakthrough release that was introduced in 2001 to provide Linux affinity and logical partitioning with the Power4 servers.
AIX introduced virtualization by 2004 in AIX 5.3 with Advanced Power Virtualization (APV) which offered Symmetric multi-threading, micro-partitioning, and shared processor pools.
In 2007, IBM started to enhance its virtualization product, by coinciding with the AIX 6.1 release and the architecture of Power6. They also rebranded Advanced Power Virtualization to PowerVM.
The enhancements included form of workload partitioning that was called WPARs, that are similar to Solaris zones/Containers, but with much better functionality.