Photos: The data centre behind CERN's LHC

Aug 3, 2012

Inside Tier Zero.

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  As the price of disk has dropped over time, CERN now runs at least 20 petabytes of disk on-site at Tier Zero (vs 60 petabytes of tape). Most working jobs can be stored on disk and the rest archived on tape for long-term storage. But the team nevertheless needs to pull back data from tape to disk on a regular basis.  
 

As the price of disk has dropped over time, CERN now runs at least 20 petabytes of disk on-site at Tier Zero (vs 60 petabytes of tape). Most working jobs can be stored on disk and the rest archived on tape for long-term storage. But the team nevertheless needs to pull back data from tape to disk on a regular basis.

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