The project is expected to generate 27 TB of raw data per day, plus 10 TB of "event summary data", which represents the output of calculations done by the CPU farm at the CERN data center... The LHC is expected to produce 10-15 petabytes of data each year.
That is a MASSIVE amount of data. I have 3TB of server storage at home for my personal needs, and this thing could fill it in minutes. Insane. We will be going through the data from the LHC for decades.