1. Tier 1 Facility Status and Current Activities Rich Baker Brookhaven National Laboratory NSF/DOE Review of ATLAS Computing June 20, 2002

2. R. Baker Mid-year NSF/DOE Review of LHC Computing 2 Recent Tier 1 Progress  Increased Staffing in FY 2002 Has Allowed  Decreased Reliance on RHIC Computing Facility Hardware  Deployment of More Scalable Hardware  Meaningful Participation in Grid Testbed Activities  Increased User Support  FY 2001 Late Supplemental Funding Upgrades  New FibreChannel RAID Disk Online – 1.6 TB, Easily Expandable to 14 TB  New Cisco 6500 Switch Deployed – Expandable Capacity for at Least 3 Years  HPSS, AFS Upgrades

3. June 20, 2002 R. Baker Mid-year NSF/DOE Review of LHC Computing 3

4. June 20, 2002 R. Baker Mid-year NSF/DOE Review of LHC Computing 4 US ATLAS Tier 1 At BNL Currently 3.2 kSPECint95 1.8 TB of Disk 10 MB/sec Tape

5. June 20, 2002 R. Baker Mid-year NSF/DOE Review of LHC Computing 5 Facility Utilization  Current Utilization  Ongoing Simulations  Most Notably, Neutron Backgrounds  Additional Detector Studies – EM Calorimeter Response  Data Challenges  DC1 Phase 1 Certification (Nearly) Complete  Approximately Half of Certification Data Produced at BNL  Production Efficiency Has Been Higher at BNL Than Other Sites  Phase 1 Production Will Start Soon  Expect BNL to Produce Large Share of Phase 1 Output  1 TB to be Written to HPSS and Transferred to CERN  Phase 2 Will Follow in FY ‘03  Expect BNL to Outperform Hardware Fraction (8%)

6. June 20, 2002 R. Baker Mid-year NSF/DOE Review of LHC Computing 6 Grid & Grid Related Tier 1 Activities  ATLAS (& STAR) Grid Activities  Partially PPDG Funded – 0.5 FTE  US ATLAS Grid Testbed Support  Pacman Cache Maintenance For Many Packages  Primary Node for Testbed  Grid Monitoring  Jason Smith on iVDGL VDT Support Team  PPDG Site AA (next slide)  Reduced Priority Cross Project Batch Queues  Allow Other Projects Access to Unused CPUs  Star and ATLAS Participating  Overall Increase in Resource Utilization

7. June 20, 2002 R. Baker Mid-year NSF/DOE Review of LHC Computing 7 PPDG Site AA Project  Evaluate Interaction Between Grid and Site Security Models  BNL, FNAL, SLAC, LBL and JLab Participating  BNL Will Focus on User Account Management  Virtual Organizations (VOs, Collaborations) Will Register Users  Tier 1 Facilities “Must” Allow Access to All VO Members  Many Administrative and Trust Issues Must be Addressed  Some Tools Exist for VO Management  BNL Will Develop Tools to Import VO Data and Manage Local Accounts