Specifications

Chapter 4. Product information and technology 111
4.12 IBM EnergyScale
IBM EnergyScale technology provides functions that help you to understand and
dynamically optimize the processor performance versus processor power and
system workload, to control IBM Power Systems power and cooling usage.
The BladeCenter Advanced Management Module and IBM Systems Director
Active Energy Manager use EnergyScale technology, enabling advanced energy
management features to conserve power and improve energy efficiency.
Intelligent energy optimization capabilities enable the POWER7 processor to
operate at a higher frequency for increased performance and performance per
watt, or reduce frequency to save energy. This feature is called Turbo-Mode.
4.12.1 IBM EnergyScale technology
This section describes the design features and the hardware and software
requirements of IBM EnergyScale.
IBM EnergyScale consists of the following elements:
򐂰 A built-in EnergyScale device (formerly known as the Thermal Power
Management Device (TPMD))
򐂰 Power executive software, which includes IBM Systems Director Active
Energy Manager, an IBM Systems Directors plug-in, and BladeCenter
Advanced Management Module
IBM EnergyScale functions include the following elements:
򐂰 Energy trending
EnergyScale provides the continuous collection of real-time server energy
consumption data. This function enables administrators to predict power
consumption across their infrastructure and to react to business and
processing needs. For example, administrators might use such information to
predict data center energy consumption at various times of the day, week,
or month.
򐂰 Thermal reporting
IBM Systems Director Active Energy Manager displays measured ambient
temperature and calculated exhaust heat index temperature. This information
helps identify data center hot spots that require attention.