6. DATA SOURCES › 6.8 PR/SM LPAR Concepts › 6.8.5 Data Analysis

6.8.5 Data Analysis

The advent of low-cost specialized processors that are able
to process workloads that were traditionally executed on
standard CP processors modifies the way computer systems
running under PR/SM in LPAR mode must be dealt with.

PR/SM logical processors can be configured as standard CP
processors, Internal Coupling Facilities (ICF), Integrated
Facilities for Linux (IFL), Application Assist Processors
(zAAP), or Integrated Information Processors (zIIP).

Starting with the IBM System z9, processors defined as ICF,
IFL, zAAP, or zIIP are managed separately.

For previous systems, it is important to understand that they
are grouped together for allocation within and across the
logical partitions in a special purpose processors' pool,
under the generic name of ICF, which is seen and managed by
PR/SM separately from the standard CP processors' pool.

Therefore, you should, more than ever, adopt a high level
processor pool approach when reporting on PR/SM activity.
Furthermore, as soon as a PR/SM configuration contains LPARs
defined with a mix of standard CP and special purpose
processors, the classical analysis method, which consists of
measuring global CPU resources at the logical partition
level, does not provide the precision required for
performance and capacity planning decision-making anymore.

The following sections will help you understand the structure
of the PR/SM related CA MICS Hardware and SCP Analyzer files,
in order to address both individual LPAR and processor pool
level analyses.

    1 - PR/SM Related Hardware and SCP Analyzer Files
    2 - LPAR Level Analysis
     3 - Processor Pool Level Analysis