Green IT gaining power

Small changes reap big savings

Green IT may be seen as a marketing tool rather than a money maker, but experts from Australia's biggest data centres have found big savings in carbon conscious technology.

IT managers can instantly cut down data centre bills and still avoid giving the CEO a million-dollar heart attack by following simple best practice techniques and configurations, according to the director of Queensland-based data centre operator PIPE Networks Bevan Slattery.

"Power is easily the highest expense in data centres, followed closely by cooling," Slattery said.

Slattery estimates that, on average, power accounts for 40 percent of data centre expenses, while cooling chews up about 30 percent.

The sting will only get worse if figures in Telstra's latest environment report are believed that suggest a whopping 40 percent increase in the demand for electricity by 2020.

"At the end of the day there's not a great deal you can do about the cost of power and cooling, except to buy the most efficient UPSs and condensers, and minimise heat flow into the data centre," Slattery said.

"The biggest efficiency gains you often get is in air conditioners - some have a 20 percent better efficiency rating than comparable models, which is a huge saving in a data centre that runs off 4MW."

IT managers who want to reel in power costs, but don't fancy their chances of getting the boss to sign off on a series of Pillar UPSs and a fleet of solar panels, should look to virtualisation to nip and tuck server utilisation.

Get it right, Slattery says, and you can save 50 percent of server power costs. Get it wrong and you are entering dangerous waters, where availability sinks and power consumption balloons.

He said virtualisation often goes awry when IT managers create a new server instance for each application, chewing up memory. Botched virtual servers can require three times as much hardware just to keep them operational.

PIPE uses virtualisation on all its internal servers, and recently reduced 20 Dell Quad servers into just two, which use about half the power.

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Darren Pauli

Show Comments

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Luke Hill


I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Laura Johnston

MSI GS65 Stealth Thin

If you can afford the price tag, it is well worth the money. It out performs any other laptop I have tried for gaming, and the transportable design and incredible display also make it ideal for work.

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?