Feeds

Take the heat from data centres’ PUE pitch

It’s hard to match new data centres' efficiency, but you can improve your own

Securing Web Applications Made Simple and Scalable

Convection direction

Once you tick off the low-hanging fruit of efficient kit, tidiness, virtualisation and setting a realistic temperature, it's time to think about airflow.

Servers and other appliances generally push hot air out their rears, so it is important to make sure that hot air doesn't travel in the direction of something you want to keep cool. The most common response to this issue is to run a “hot aisle/cold aisle” regime whereby you make sure hot air travels in one direction only. That means placing racks so that their rears face one another, with the result being a nastily-warm aisle between the two.

Such an arrangement means all the hot air ends up in once place from which it can be whisked away and treated, rather than spreading warm air around.

“You are not optimising cooling if you mix hot and cold air,” says Emerson's Grandjean-Thomsen.

If your data centre or server room isn't set up in this way, the bad news is that you'll almost certainly need to stop operations in order to re-rack kit in a more cooling-friendly way. If that's not an option, the likes of Schneider IT offer hot aisle containment systems, drop-in pods that isolate hot aisles and bring cooling to where it can be most impactful.

Beyond these tactics like a raft of techniques that fall under the label of 'data center infrastructure management'. Best-suited to larger data centres, because of their reliance on fine monitoring of a facility, DCIM requires a dedicated application (which means an additional server to power and cool) but can return inform power management and cooling practices that operate at a very granular level. For example, DCIM makes it possible to identify servers that consistently run hot because they are being worked hard, or even look at which sockets are sucking most energy. With that knowledge in hand, you can then distribute workloads among different boxen to prevent hot spots from forming.

It's also possible to fight back against power bills by making them someone else's problem . Electricity procurement is, according to Schneider IT's Tyrer, a fiendishly tricky business. Schneider's Australian arm therefore acquired a specialist consultancy to crunch the numbers offered by electricity companies and will happily offer you its services. Perhaps if your CIO asks you about PUE, pointing him or her in the direction of such a consultancy wherever you reside will deflect the matter and demonstrate your own efficiency at the same time. &ref;

The Essential Guide to IT Transformation

More from The Register

next story
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
EU's top data cops to meet Google, Microsoft et al over 'right to be forgotten'
Plan to hammer out 'coherent' guidelines. Good luck chaps!
US judge: YES, cops or feds so can slurp an ENTIRE Gmail account
Crooks don't have folders labelled 'drug records', opines NY beak
FLAPE – the next BIG THING in storage
Find cold data with flash, transmit it from tape
Seagate chances ARM with NAS boxes for the SOHO crowd
There's an Atom-powered offering, too
Intel teaches Oracle how to become the latest and greatest Xeon Whisperer
E7-8895 v2 chips are best of the bunch, and with firmware-unlocked speed control
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Mobile application security vulnerability report
The alarming realities regarding the sheer number of applications vulnerable to attack, and the most common and easily addressable vulnerability errors.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.