Atlas:SC4

Bienvenue sur la page Atlas SC4 LCG-France

Welcome to the LCG-France Atlas SC4 page

Page Twiki SC4 ATLAS

Compte rendu de la réunion SC4 ATLAS au CERN du 9 Juin (S.Jézéquel) (written in french)

• T0 Role(CERN)
  • Produce dummy files with 1 to 2 GB size(RAW, ESD et AOD)
  • Initiate T0->T1 transfers
  • FTS server sents files to Lyon choosing between 'TAPE' (RAW 43,2 Mo/s) or 'DISK' (ESD,AOD 23+20 Mo/s) areas
• T1 Role (CCIN2P3)
  • Get files from T0 (dedicated dcache area)
  • Send all AODs to each T2 (20 Mo/s) using Lyon FTS server
  • Regurlarly cleanup files
• T2 Role (LAL, LPC, TOKYO)
  • Get files from T1 (Lyon)
  • Clean-up the files (?)
• Other roles
  • ATLAS (S. Jézéquel) : Initiate T1->T2 transfers

Information from DDM monitoring

http://atlas-ddm-monitoring.web.cern.ch/atlas-ddm-monitoring/rrd/plots/stackday.png http://atlas-ddm-monitoring.web.cern.ch/atlas-ddm-monitoring/rrd/plots/stack4h.png

• Transfer rates for LYON (validated files by DDM)
• Detailed information on each site