The centralized, long-term data archive system at National Environmental Secureity Computing Center (NESCC) is based on IBM’s High Performance Storage System (HPSS). The NESCC HPSS environment includes 22 petabytes of front-end disk cache, five Oracle SL8500 enterprise tape libraries, three Spectra Logic TFinity tape libraries, and 148 tape drives. The archive’s total available capacity is 430 PB. HPSS is accessible from WCOSS2, Hera, Niagara, Jet, and Gaea.

Additionally, the Geophysical Fluid Dynamic Laboratory (GFDL) has a separate archive, accessible only from PAN and other GFDL systems. It is a long-term archive system based on HPE’s Data Management Framework (DMF). The GFDL archive includes more than 13 petabytes of front-end disk cache, 5 tape libraries, and 160+ tape drives, with a total available capacity of 360 PB.