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2: The Basics of Green IT 33

■ Allocate less power and cooling infrastructure to servers.
■ Lower power usage on select servers.
■ Plan for the future by viewing trends of power usage over time.
■ Determine power usage for all components of a rack.

To better understand energy usage across your data center:

■ Identify energy usage.
■ Measure cooling costs accurately.
■ Monitor IT costs across components.
■ Manage by department and user.

AEM software allows IT managers to control—even set caps on—
their energy use for servers, storage, and networking, as well as the air
conditioning and power management systems that keep the data center
running. The software supports monitoring of devices that are connected
to select “smart” power strips used to provide power to multiple devices, ptg
including IBM and non-IBM servers and storage systems, as well as
energy-monitoring support using select wireless devices that might
extend beyond traditional data center walls.
Another server manufacturer providing a tool for measuring and man-
aging energy use in servers and other IT equipment is HP’s Insight
Control. Insight Control allows management of HP ProLiant and
BladeSystem infrastructure systems. Management functions include
power measurement and power capping. The HP Insight Control and
IBM AEM software can also be used with equipment from facility man-
agement providers. For example, the software can retrieve temperature
and power information from companies such as SynapSense
Corporation’s wireless sensors, which can be located virtually anywhere
in the data center. The software can also receive alerts and events related
to power and cooling equipment through interaction with equipment
from a wide variety of cooling vendors and building management system
providers. The alerts can notify IT administrators about issues with
facilities equipment, such as overheating, low battery power on uninter-
ruptible power supply batteries, or other conditions.