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1 of 8The data center holds tens of thousands servers.Martin Schoeller For TIME -
2 of 8These rows of servers are set up to minimize the energy required to keep the data center running.Martin Schoeller For TIME -
3 of 8A close up of the servers in two racks.Martin Schoeller For TIME -
4 of 8The center includes sophisticated coolings systems and back up power supplies.Martin Schoeller For TIME -
5 of 8Cables connect servers in the center with each other and the entire facility with the outside world.Martin Schoeller For TIME -
6 of 8The center was constructed using a "layered replication" model that makes failure almost impossible, even if a regional power system blacks out.Martin Schoeller For TIME -
7 of 8The facility is located 25 minutes by car from Facebook's headquarters. Since these photographs were taken, Facebook has built more state-of-the-art facilities.Martin Schoeller For TIME -
8 of 8The servers process every update to Facebook users' pages.Martin Schoeller For TIME
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