LCG Introduction John Gordon STFCRAL GDB meeting CERN

LCG Introduction John Gordon, STFC-RAL GDB meeting @CERN July 9 th, 2008

LCG • • Since the Previous Meeting CCRC 08 Post Mortem Workshop OPN Meeting EGI-DS Workshop – revealing the Blueprint LHCC Mini Review 2

GDB meetings in 2008 LCG • Second Wednesday of each month • July clash with EGEE II Final Review • Who will be here in August? • • January 9 • February 6 • March 5 • April 2 • May 14 • June 11 • July 9 • August 13 • September 10 • October 8 • November 12 • December 10 3

GDB meetings in 2009 LCG • How has second Wednesday of each month worked? • We moved 3 meetings to the first week • 4

LCG Pre-GDB meetings • None in July • September for Tier 2 s too? • Any bids for subsequent ones?

LCG Events • • EGEE II Final Review CERN, July 8 -9 th CCRC Post Mortem Workshop CERN, June 12 -13 th 2008 OGF 24 Singapore, September 15 -19 th EGEE 08 Conference Istanbul, September 22 -26 th HEPi. X Fall Meeting Taipei, October 20 -24 th CCRC 09 Planning Workshop CERN, November 13 -14 th WLCG Collaboration Workshop Prague, March 2122 nd 2009 • CHEP 09 Prague, March 22 -27 th 2009 6

LCG Tier 2 Participation • Tier 2 GDB scheduled for September • Could have Tuesday too for an overflow or related meetings.

LCG Suggestions • Storage system: comparative studies of different systems; same storage system for Tier-2 responsibilities (MC and distributed analysis) and local resources to store DPD or Ntuples (? ); • Discussion about common systems and services in Federated Tier 2; in a more general framework: how the federated Tier-2 organize themselves? • Virtual machines for given services; • User Support: centralized, ticketing system, etc • Network Connectivity • Organization of the software of the experiment; • Recommended hardware for WN and pools; • Comparison of the role of the Tier-2 in the computing Model of the experiments;

LCG Suggestions • Problems with Tier 1 s • Support from CERN for Tier 2 s to travel to CERN for training and other events. • Communication lines for T 2's. Leave to the experiments or add something w. LCG specific ? • (SAM) monitoring and alarms for T 2 sites • Accounting • Availability • Successful case studies

LCG EGI-DS • Blueprint was published • Narrower than hoped. • Little engagement with new communities like other international facilities (XFEL, ESRF, ILL). or supercomputers • Operational model will probably deliver for LHC • But there is a risk NGIs will not engage or EC will not fund

LCG Today • Benchmarking • Middleware – CREAM • Site Readiness • Operational Security • Megatable – Reporting installed capacity • Monitoring Framework

LCG Topics for Future Meetings • Pilot Job Frameworks • Job Priorities • Benchmarking – implementation details • Other Suggestions? 12

LCG Postscript • What actions have arisen today that should result in a presentation to a future meeting? • What issues have arisen that require someone to return to the next meeting with a status report? • What topics would the meeting like discussed at future meetings? 13