In pictures: Mondo datacentres

Think you have to manage a lot of IT gear? These massive facilities - each at least 100,000 square feet and most much larger than that - house thousands of servers and process millions of documents, images and videos every day.

eBay - Delta, Utah

At 245,000 square feet, this new data center houses most of eBay’s computing infrastructure, including the eBay.com marketplace, PayPal and related services. Some 50,000 square feet of unused space are set aside for future needs. This is the first data center that eBay has owned outright. There’s a 400,000-gallon cistern used for cooling the data center; all electrical equipment runs at 400 volts, which removes one level of transformers to the building.

The facility is LEED Gold certified and is 50% cheaper to operate and 30% more efficient than previous eBay facilities, partly due to the water cooling which collects rainwater and can keep the building cool for 7,000 hours without drawing any electrical current.

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