1. U.S. ATLAS Facility Planning U.S. ATLAS Tier-2 & Tier-3 Meeting at SLAC 30 November 2007

2. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 2 Planning ahead …  Scope: ~6 months  Milestones and Items on the following slides are guided by Production and Analysis needs  U.S. ATLAS Computing Integration Program will translate them into the technical steps sites have to perform

3. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 3 Analysis  Analysis at Tier-2s q Implement analysis queues at all 5 Tier 2's o Complete by 15 December q Replicate all R13 AOD's (and some selected R12 AOD's) to all Tier 2's o How much space is needed at each Tier-2 o Who makes decision on datasets? o Who makes subscriptions and runs DDM operations? o Complete by 31 December  Demonstrate automatic redirection of analysis jobs to all Tier 2's by pathena  15 January

4. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 4 Analysis  Interactive Analysis q BNL PROOF farm available to all US ATLAS users for testing o Complete 31 January q BNL PROOF farm in production mode o Complete 31 March q Tier 2 PROOF farms available o Complete 30 June o Does this fit our model (User account management etc.)? q Support Tier-3 activities as part of the Computing Integration Meeting o Immediately, ongoing

5. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 5 Storage Services  At Tier-1 q Evaluate Pinning with SRM v2.2 o Complete by 21 December q Propose data placement plan for data at Tier 1, including pinning, disk only partitions etc o Complete by 31 December q Develop and deploy software necessary to mange pinned files o Complete 15 January q Disk space reconfiguration according to computing model o Complete 31 January  Develop and deploy disk-only dCache space management tools o Complete 21 December q User space management at Tier 1, including user management, cache cleanup o Proposal: Complete 31 December o Deployment: 31 January q LFC o Test system deployed: Complete 31 December o Test system production ready: 31 January o Migration to LFC completed for US, assuming successful tests: 28 February

6. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 6 U.S ATLAS Data  Data Management q Deploy storage quota system US ATLAS wide o Complete by 28 February q DQ2 data deletion fully operational o Complete by 15 December q Complete DQ2 lost file tagging for US o Complete 15 January  What is data flow model in Pathena?  What if researcher produces data at Tier3?  How is the decision to archive made?  Are Tier2’s expected to maintain precious data indefinitely?  User Data Lifetime?  Consistency Checks?

7. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 7 Operations & Performance  Incident tracking / Communication q Elog deployed & operational o Complete 15 December  Performance q Demonstrate 2007 WLCG pledge with 90% average efficiency o Complete 31 December q Demonstrate 90% 2008 WLCG pledge o Complete 30 June o Contingent to funding situation

8. 28 November 2007 M. Ernst Tier-2/3 Meeting at SLAC 8 Next Meeting  Jointly with OSG All-Hands Meeting at RENCI (Chapel Hill, North Carolina)  3 - 5 March 2008