pre-GDB Meeting

Tuesday 3 Oct 2006, 13:00 → 18:00 Europe/Zurich

IT Auditorium (CERN)

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

minutes minutes

1 Storage Classes Deployment Issues

• Discussions

Speaker: Artem Trunov (IN2P3)

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2 Storage Classes in storage systems

3 Discussion

Speaker: All

4 Storage Class Uses by the Experiments

• ATLAS (Dario Barberis) (15')
• LHCB (Andrei Tsaregorodstev) (15')
• ALICE (Artem Trunov)(15')
• CMS (Artem Trunov,Stefano Belforte) (15')

Speaker: Experiments (CERN)

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5 A Tier-1 implementation plan of the Storage Classes

Speaker: see sub-points

6 Nota Bene

Some people may have to leave for the WLCG Management Board meeting but the meeting may go on.