pre-GDB Meeting

IT Auditorium (CERN)

IT Auditorium



A whole afternoon will be used to discuss the implementation of the storage classes as defined in SRM v2.2 in the Tier-1 and Tier-2 centra to be used for upcoming MC productions, reconstruction, and analysis.
Issues not to forget:

  • quota ?
  • cache before a mass storage system ?
  • disk1-tape1 issues:
    • a single space assures D1T1 if written to?
    • or the experiment fw writes file to two different spaces?
    • if it it is the first, can SRMs support this?
  • data type mixing on tapes ?
  • storage class conversion ?
  • WAN and/or LAN file access ?
  • data ownership ?
  • data deletion ?

VRVS will be available from the "OCEAN" Room

This agenda is preliminary
The meeting is supposed to be primarily a discussion

    • 13:00 13:30
      Storage Classes Deployment Issues 30m
      • Discussions
      Speaker: Artem Trunov (IN2P3)
    • 13:30 14:00
      Storage Classes in storage systems 30m
      • Castor 15m
        Speaker: Shaun de Witt
      • dCache 15m
        Speaker: Patrick Fuhrmann
    • 14:00 14:30
      Discussion 30m
      Speaker: All
    • 14:30 15:30
      Storage Class Uses by the Experiments 1h
      • ATLAS (Dario Barberis) (15')
      • LHCB (Andrei Tsaregorodstev) (15')
      • ALICE (Artem Trunov)(15')
      • CMS (Artem Trunov,Stefano Belforte) (15')
      Speaker: Experiments (CERN)
    • 15:30 16:30
      A Tier-1 implementation plan of the Storage Classes 1h
      Speaker: see sub-points
      • CERN 15m
        Speaker: Jan van Eldik
      • IN2P3 15m
        Speaker: Lionel Schwarz
    • 16:00 16:20
      Nota Bene 20m
      Some people may have to leave for the WLCG Management Board meeting but the meeting may go on.