HP-UX Workload Manager User's Guide

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If you plan to use configuration files based on Process Resource Manager
(PRM), ensure that version C.03.00 or later of PRM is installed. To take
advantage of the latest updates to WLM, use the latest version of PRM
(C.03.02 or later). PRM is necessary for managing processor sets (PSETs)
or Fair Share Scheduler (FSS) groups, which are confined within a
specific instance of HP-UX. If you plan to use WLM to manage
host-based configurations only, PRM is not necessary. Host-based
configurations are designed for moving CPU resources (cores, which are
the actual data-processing engines within a processor; a processor might
have multiple cores, and a core might have multiple execution threads)
across virtual partitions and nPartitions; the configurations are not
confined within a specific instance of HP-UX as are PRM-based
configurations. For more information, see Chapter 7, “Managing SLOs
across partitions,” on page 255.
HP-UX WLM provides a method for collecting system and application
data from GlancePlus. You can use WLM with any HP-UX 11i version of
GlancePlus. On HP-UX 11i v1, be sure to install either the 11i
Enterprise Operating Environment or 11i Mission-critical Operating
Environment to ensure you have a GlancePlus version that is fully
compatible with WLM.
Document Structure
This document is organized as follows:
• Chapter 1 introduces the basic concepts of performance
management, workload management, and HP-UX Workload
Manager (WLM).
• Chapter 2 provides an overview of the techniques and tools available
for using WLM. It serves as a condensed version of the user’s guide,
introducing you to the essentials and allowing you to get started
using WLM.
• Chapter 3 describes how WLM manages workloads through
service-level objectives (SLOs). It discusses WLM’s two types of
SLOs: shares-based and goal-based SLOs.
• Chapter 4 discusses the basic steps you need to take to use WLM.
The remainder of the chapters in the book discuss these steps in
detail.