2. 2 CMS 6 PB raw/run Phobos 50 TB/run E917 5 TB/run

3. 3 RED: Tier 1: Fermilab (US), ASGC (Taiwan), INFN (Italy), KIT (Germany), RAL (UK), PIC (Spain), IN2P3 (France) BLUE: Tier 2: (roughly 50) Tier 3s (and Tier 4s!) not pictured here

5. 5

6. 3 Compute Elements are manageable By hand 6

7. ? We need middleware – specifically a Workload Management System (and more specifically, “glideinWMS”) 7

8. VO Frontend (Command/Control) Pull All “grid” knowledge remains at the factory Grid looks like a Condor batch system to the user Jobs run inside a container which protect user against bad nodes 8

9. VO Frontend (Command/Control) Pull Can set priorities centrally for multiple users 9

10. VO Frontend (Command/Control) Pull Single factory can serve multiple VOs VO Frontend (Command/Control) 10 CMS DZero

11. VO Frontend (Command/Control) Pull VO Frontend can talk to multiple factories VO Frontend (Command/Control) 11 CMS DZero

12. 12

13. CMS Frontend 1 CMS Frontend 2 ~60,000 concurrent jobs! 13

14. Factory 1 (UCSD) Factory 3 (CERN) Factory 4 (FNAL) Factory 2 (IU) 14

15. 15

16. 16

18. 18

21. 21 KyleAlex