Grid : ILC Transfers

Created by Thomas Hartmann, last modified by Oliver Schaefer on Jul 23, 2021 10:49
  • Scope?
    • involved sites?
      • DESY-HH
      • NIKHEF
      • KEK
      • (Saclay/CEA?)
      • Data seems to be only on DESY dcache, according to old file catalogue (lfc).
    • data flow
      • DESY-HH → NIKHEF
      • NIKEF → DESY-HH
      • ... between all centres, but not often at the moment
    • volume/troughput/rates
      • occassionally/production?
      • approx volume per day/month/year?
  • technical details
    • involved storage elements?
      • all dCache sites? No, only DESY so far.
    • what protocols?
      • SRM (is being phased out in WLCG - better avoid)
      • WebDAV
      • xrootd
    • authentication/authorization
      • what authz mechanism?
        • X509/grid certs? Probably.
        • tokens/macaroons
      • common authz structure/namespace at all involved sites?
        • who will initiate transfers?
    • transfer handling?
      • manual, i.e., path to path by a person
      • transfer management (FTS3)
      • coupled with data management (Rucio? DIRAC?) Not clear, yet, if we need that anytime soon.