Stop Over-Clocking Your Data Centre Fans, Says Sun

IT staff should reduce the amount of energy they waste by over-cooling their data centres, according to Sun Microsystems.

The server-maker’s recommendations include cutting down the number of fans in data centre racks, and reducing the amount of time they are running for, allowing the overall temperature in the data centre to rise, so less energy is spent expelling heat from the building, and even trading-off the working life of their equipment by running it in less.

“Fans are a big part of the power budget in many data centres, taking as much as 20 percent of the total power of the system,” said Phil Morris, chief technologist for Sun’s data centre efficiency practice, in a webcast broadcast by BrightTalk.

“Overclocking those fans – making them run too fast – is a big waste of energy.”

A lot of companies are still throwing energy at their data centres to run cooling systems that reduce their temperature lower than necessary, said Morris. The authority here is the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), and it recommends that the input temperature for data racks could be raised to 40C, while many organisations are still chilling to far lower temperatures.

Much data centre equipment was built to earlier standards than the current ASHRAE limits warned Morris in the presentation, part of a virtual conference on IT Power Management, but this will change: “As technology gets refreshed and equipment gets upgraded or replaced, we will see more and more ability to handle higher temperature operations.”

Vendors have two sets of recommendations for their equipment -and uses should consider using the extended operating range, rather than the optimal performance temperature, said Morris.

Peter Judge

Peter Judge has been involved with tech B2B publishing in the UK for many years, working at Ziff-Davis, ZDNet, IDG and Reed. His main interests are networking security, mobility and cloud

Recent Posts

Craig Wright Sentenced For Contempt Of Court

Suspended prison sentence for Craig Wright for “flagrant breach” of court order, after his false…

3 days ago

El Salvador To Sell Or Discontinue Bitcoin Wallet, After IMF Deal

Cash-strapped south American country agrees to sell or discontinue its national Bitcoin wallet after signing…

3 days ago

UK’s ICO Labels Google ‘Irresponsible’ For Tracking Change

Google's change will allow advertisers to track customers' digital “fingerprints”, but UK data protection watchdog…

3 days ago

EU Publishes iOS Interoperability Plans

European Commission publishes preliminary instructions to Apple on how to open up iOS to rivals,…

4 days ago

Momeni Convicted In Bob Lee Murder

San Francisco jury finds Nima Momeni guilty of second-degree murder of Cash App founder Bob…

4 days ago