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    Product Name
    AIX System p Hardware
    Publisher Page
    IBM
    Category
    Hardware
    Release
    TKU 2019-Aug-1
    Change History
    IBM AIX System p Hardware - Change History
    Reports & Attributes
    IBM AIX System p Hardware - Reports & Attributes
    Publisher Link
    IBM

    Product Description

    IBM System p (IBM POWER) hardware supports Logical Partitioning (LPAR), and more specifically Dynamic Logical Partitioning, giving the capability to the logical partition to be reconfigured dynamically, without shutting down.
    It enables memory, CPU capacity and I/O interfaces to be moved between LPARs.
    IBM introduced LPARs on POWER4-based server as a mainframe-inspired technology. It is supported on AIX, i5/OS and Linux (running on POWER architecture), although on Linux changes are limited to CPU capacity and I/O devices.

    AIX running on IBM pSeries (now known as System p) first introduced support for Dynamic Logical Partitions in version 5.2. These partitions could run AIX 5.1, 5.2 or Linux.

    Later, the POWER5 processor added more capabilities, including micro-partitioning: up to ten LPARs could be configured per processor, with a single multiprocessor server supporting a theoretical maximum of 254 LPARs (and thus up to 254 independent operating systems).

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