• Federated access to data is one of the main recommendations of the Data Management and Storage TEG.
  • For the large scale implementation it is important that several technical details and policies have to be clarified, agreed and documented, so that implementation and setup can progress.


  • Clarify in detail which forms of federated data access need to be supported
    • “fail over” for individual jobs/“repair mechanism” of placed data/who initiates the repair?/how is metadata handled?/pro-active repair?
  • Work on relevant aspects of federated data stores
    • access control and trust mechanism between sites
    • use of catalogues
    • etc.
  • Suggest a deployment and operations model for the additional components
    • redirectors
    • xrootd plugins for non-native systems
    • experiment specific configurations/plugins
    • configuration of federations
    • discovery of federations


Here is the list of the participants, with an indication about their areas of competence.

  dCache Xrootd DPM STORM EOS ATLAS CMS ALICE LHCb Tier1 Tier2/3
Costin Grigoras                    
Doug Benjamin                  
Rob Gardner                
Brian Bockelman                  
Giacinto Donvito                  
Philippe Charpentier                    
Fabrizio Furano                    
Paul Millar                    
Andy Hanushevsky                    
Michele Dibenedetto                    
Dirk Duellmann                    
Luca dell’Agnello                    
Jeff Templon                    
Stuart Wakefield                    

Mailing list


-- FabrizioFurano - 02-Aug-2012

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Topic revision: r10 - 2013-02-12 - FabrizioFurano
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