Building the Mass Storage System at Jefferson Lab Ian Bird, Bryan Hess, Andy Kowalski

Thomas Jefferson National Accelerator Facility (Jefferson Lab) is a U.S. Department of Energy Facility [1] conducting Nuclear Physics experiments that currently have data collection rates of up to 20 MB/second. Future experiments, however, are expected to greatly exceed these rates. Post processing and data analysis produce similar amounts of data. Both the raw and processed data are stored on tape and need to be easily accessible. Between data collection and processing, the Mass Storage System at Jefferson Lab currently moves over 2 TB of data per day.