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The cooling systems sit on the roof of the datacenter, pulling in cool air and pushing out warmer air.
The modular design and construction of the datacenter means systems controlling power and cooling are mirrored across all rooms. Telefonica says this helps with maintenance as well as construction.
Telefonica says it decided to build the datacenter in Alcala de Henares — birthplace of Don Quixote author Miguel de Cervantes — partly as a sign of confidence in Spain, and Madrid in particular, as it recovers from the crippling financial crisis.