A distributed tier-1

The Tier-1 facility operated by the Nordic DataGrid Facility (NDGF) differs significantly from other Tier-1s in several aspects: firstly, it is not located at one or a few premises, but instead is distributed throughout the Nordic countries; secondly, it is not under the governance of a single organization but instead is a meta-center built of resources under the control of a number of different national organizations. We present some technical implications of these aspects as well as the high-level design of this distributed Tier-1. The focus will be on computing services, storage and monitoring.

[1]  David Cameron,et al.  ATLAS DDM integration in ARC , 2008 .

[2]  Carl Kesselman,et al.  Performance and scalability of a replica location service , 2004, Proceedings. 13th IEEE International Symposium on High performance Distributed Computing, 2004..

[3]  Ian Foster,et al.  The Grid 2 - Blueprint for a New Computing Infrastructure, Second Edition , 1998, The Grid 2, 2nd Edition.

[4]  Flavia Donno,et al.  The INFN-Grid Testbed , 2005, Future Gener. Comput. Syst..

[5]  Ian T. Foster,et al.  Globus: a Metacomputing Infrastructure Toolkit , 1997, Int. J. High Perform. Comput. Appl..

[6]  Gerd Behrmann,et al.  A distributed storage system with dCache , 2008 .

[7]  Ami Marowka,et al.  The GRID: Blueprint for a New Computing Infrastructure , 2000, Parallel Distributed Comput. Pract..