Capacity Provisioning basics

It is assumed that the user knows the main Capacity Provisioning concepts and the terms related to them. Capacity Provisioning basics is intended to provide basic knowledge of terms and concepts related to the topic. Capacity Provisioning operates in the following environment:

Field of operation

The scope of a z/OS® Capacity Provisioning system is referred to as a Capacity Provisioning Domain, or simply a >domain. The domain configuration describes the scope of management within a provisioning domain. The domain includes hardware and software elements. The hardware elements are one or more central processor complexes (CPCs) where capacity can be provisioned or deprovisioned by Capacity Provisioning. The software elements are z/OS operating systems that can run on one or more of these CPCs. These elements are monitored by Capacity Provisioning to determine the hardware requirements.

Rules of operation

Provisioning Management is controlled by a Capacity Provisioning Policy, or simply a >policy. This policy defines the actions to be performed on the hardware and software elements in response to the demands of the observed software elements. A policy contains >rules, which define capacity that can be provisioned, time periods during which the rule is applied and optionally workload conditions that trigger provisioning.

The domain is controlled by the >Provisioning Manager. The Provisioning Manager runs on a z/OS system and controls the domain in real time. It observes the software elements and monitors workload demands. It recommends hardware configuration changes to the system operator, or can activate or deactivate capacity to satisfy these demands.

The graphical user interface for the Provisioning Manager is the >Capacity Provisioning Management Console (CPMC). You use this interface to work with provisioning policies and domain configurations, and to view the status of the Provisioning Manager.

These concepts are explained in the >overview section. The domain is described on page Capacity Provisioning Domain, policies on page Capacity Provisioning Policy, the Provisioning Manager on page Capacity Provisioning Manager and the CPMC on page Capacity Provisioning Management Console.

More information about key points is provided in Capacity Provisioning in detail.