1. WLCG Collaboration Workshop 7 – 9 July, Imperial College, London In Collaboration With GridPP Workshop Outline, Registration, Accommodation, Social Events etc.

2. Outline Workshop agenda (under WLCG in Indico)agenda – Wednesday: Service Issues; Storage; On-going Activities e.g. virtualization, clouds, multi-core – Thursday: Experiment “Jamborees” – Friday: Summaries from Jamborees, Key Issues & Outlook Still time to re-arrange agenda, e.g. in light of June DAam Jamboree This agenda seemed to make sense when first draft (Feb) but things naturally evolve… More details on agenda later…

3. Registration & Payment, Hotels There is a fee of £80 that covers: – Coffee breaks; Drinks Reception on first evening  Generous contribution from GridPP! Fee does not cover dinners – e.g. proposed experiment dinners on Thursday evening following Jamborees, nor lunch breaks Links on agenda page to student accommodation & hotels + maps, etc. Advice: BOOK EARLY! This helps you and also organizers!

4. Jamborees – Thursday Two hour slots (LHCb@09:00, CMS@11:00, ATLAS@14:00, ALICE#16:00) with lunch@13:00 This allows sites to attend all relevant jamborees Management permissions have been given to named people from the experiments (since Feb) to arrange agendas for their sessions – If you want additional or different names please let me know Also assumed that there will be social dinners – again organized by the experiments – on Thursday evening (see registration form) Friday morning: summaries of key issues by experiment – This implies at least one person – preferably more – who will note the key issues and report on them

5. Wednesday – Service Session WLCG Service from the point of view of Tier2s, Tier1s and Experiments Would be “natural” for the “host” sites, i.e. IC and RAL (GridPP) to coordinate these Should – as with experiment summary – be as inclusive and representative of key service issues as seen by the site(s) / experiments Tier2s in particular tend to be under-represented at GDB / MB style events: their input is essential!

6. Wednesday – Topical Issues Service Interventions: Experience with “Change Assessments” – Came out of January GDB discussion Data Access Working Group: Progress and Issues – Relevance following DAaM Jamboree? Move? Refocus? End User Analysis Support: Status & Issues – Same comment…

7. Wednesday – Storage Session Prompted by issues at a number of Tier1 sites with their storage services & discussions at February LHCC referees meeting Case studies: CNAF & PIC Panel discussion: strategies for Tier1 (and other?) storage Again, should probably be reviewed in the light of DAaM Jam in Am(ster)dam

8. Wednesday – Ongoing Activities Exposure of work on: Clouds, Virtualisation, Multi-core: presentations on on-going / planned activities Panel discussion: WLCG directions All TBD

9. Friday – Wrap-up & Segue into CB Key Issues from Jamborees Dealing with prolonged Site Downtimes – Raised at WLCG Tier1 Service Coordination meeting Workshop Summary and Outlook Workshop ends at Lunchtime and is followed by a (closed) Collaboration Board meeting

10. Where Next? We have held WLCG Collaboration workshops typically once per year, complemented by more topical events, e.g. STEP’09 post-mortem etc. An event towards end-2010 to review 2010 data taking, processing and analysis? – Not at CHEP, nor at the first EGI Technical Forum… A Collaboration workshop mid-2011? Would be nice to have a queue of volunteer sites… Need a room that can cater for 150 – 250 people, plus usual infrastructure 2012: prior to CHEP in New York?

11. Summary July workshop: Wednesday morning to Friday lunchtime Please register early! Announcement will be sent this morning to wlcg-service-coordination@cern.ch: feel free to forward as widely as possible! wlcg-service-coordination@cern.ch Good attendance from experiments and sites and active discussion / networking encouraged Thanks to Imperial College and GridPP!