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Oringial from : http://www.tablespace.net/quicksheet/powervm-quickstart.html PowerVM QuickStart Version 1.2.1 Date: 3/11/12 This document is minimally compatible with VIOS 1.5. VIOS 2.1 specific items are marked as such. Overview Virtualization Components • (Whole) CPUs, (segments of) memory, and (physical) I/O devices can be assigned to an LPAR (Logical Partition). This is commonly referred to as dedicated resource partition (or Power 4 LPARs, as this capability was introduced with the Power 4 based systems). • A DLPAR is the ability to dynamically add or remove resources from a running partition. All modern LPARs are DLPAR capable (even if the OS running on them is not). For this reason, DLPAR has more to do with the capabilities of the OS running in the LPAR than the LPAR itself. The acronym DLPAR is typically used as a verb (to add/remove a resource) as opposed to define a type of LPAR. Limits can be placed on DLPAR operations, but this is primarily a user imposed l