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Appendix A
Green IT Checklist and Recommendations 229

IT Power Management with the
Active Energy Manager (AEM) Tool

Overview

The IBM Active Energy Manager (AEM) is an update to the IBM
PowerExecutive™ that was previously available from IBM for x86 sys-
tems only. IBM Systems Director Active Energy Manager supports mul-
tiple IBM platforms and provides new capabilities that build upon the
functions previously available with the IBM PowerExecutive tool.
AEM measures, monitors, and manages the energy components built
into IBM systems enabling a cross-platform management solution. AEM
is an IBM Director extension that supports the following endpoints:
IBM BladeCenter, POWER, System x, and System z servers. In addition,
both IBM storage systems and non-IBM platforms can be monitored
through PDU+ support.
The AEM server can run on the following platforms: Windows on
ptg
System x, Linux on System x, Linux on System p, and Linux on System z.
AEM uses agentless technology and, therefore, no agents are required on
the endpoints.
Monitoring and management functions apply to all IBM systems that
are enabled for IBM Systems Director Active Energy Manager V3.1.
Monitoring functions include power trending, thermal trending, and
PDU+ support. Management functions include power-capping and
power-savings mode.
AEM also provides a source of energy management data that can be
exploited by Tivoli enterprise solutions, such as IBM Tivoli Monitoring
and IBM Tivoli Usage and Accounting Manager. It is a key component
of IBM’s Cool Blue™ portfolio within Project Big Green.

How Active Energy Manager Works and the Benefits
This solution helps customers monitor energy consumption to allow
better utilization of available energy resources. The application software
enables customers to trend actual energy consumption and correspon-
ding thermal loading of IBM systems running in their environment with
their applications. This helps customers do the following: