1. Build the most energy-efficient data centre possible. This will save energy and costs over its lifespan.
2. Only get the data storage capacity that is currently required and forecast for the lifespan. Many data centres have excess capacity that burns energy (and therefore costs) unnecessarily. Don’t have servers or equipment that will not be used.
3. Cooling data centres. Traditionally cooling has been done by air circulation, which is very inefficient. Larger data centres already use other technologies to cool more efficiently, such as water cooling.
4. Virtualisation technology. Improve your system’s resource utilisation through virtualisation technology. Virtualisation is the creation of a virtual (rather than actual) version of something, such as an operating system, server, network, etc. and allows a single user to access several physical devices on one terminal. A computing device dedicated to an individual member of staff or allocated for one software application is highly inefficient and expensive. Virtualisation consolidates resources, requiring less power and cooling.
5. Consider cloud computing. This is a location-independent IT service, typically available over the internet, where shared servers provide resources, software and data to computers and other devices on demand, increasing IT capacity and capabilities without an organisation having to invest in new infrastructure. Keeping data virtually, or “in the clouds”, means less information stored on IT systems and therefore less energy being used to run the systems. Systems such as BT’s Virtual Data Centre, a hosted data centre that enables businesses to create, deploy, monitor and manage their own service through a self-service portal, claim to offer savings of up to 40% of the total cost of running one’s own data centre as well as reducing the space required, the level of emissions produced and the power consumed.