It is the first and so far only internationally distributed WLCG Tier1 center, providing computing and storage services to experiments at CERN.
[1] Nordic Data Grid Facility traces its history back to end-2001, being intrinsically related to the NorduGrid project.
This need has been addressed by establishing a pilot NDGF infrastructure, which was operational in 2002-2005, and provided distributed storage in addition to the NorduGrid computing resources.
[2] It came into operation on June 1, 2006, and its initial priority is to live up to the original commitment of establishing the Nordic Tier1, with the traditional focus on storage facilities.
Today, the dominant user community of the NDGF Tier1 is the High Energy Physics - the ALICE, ATLAS and CMS Virtual Organizations - through the operation of the Nordic Tier1, which together with the Tier0, CERN, and the other 12 Tier1s collects, stores and processes the data produced by the Large Hadron Collider at CERN.