AIX 6 (V6.1) introduces a new, software-based, virtualization approach called Workload Partitions (WPAR) that complements the existing IBM System Logical Partitions by reducing the number of operating system images that have to be managed when consolidating workloads. Workload Partitions enable the system administrator to consolidate multiple applications inside of a single running instance of AIX 6 or later.
Each Workload Partition can be separately administered from other WPARs in the system, including separate security and root level user. WPARs obtain a regulated portion of the system resources available to the instance of AIX and share the AIX resources such as kernel resource and I/O.
Workload Partitions can also be moved from one system to another without restarting the application or causing significant disruption to the application end user. This capability, called "Live Application Mobility" is enabled though a separately offered licensed program product, the Workload Partitions Manager.