1. COMPUTING RESOURCES REQUIREMENTS 2013-2017 September 18, 2012 ALICE© | MB | 09/06/2012 | Y. Schutz

2. FOREWORD Computing Resources requirements estimated for the period 2013-2017 To be discussed by WLCG in September 2012 (now) To be presented to the RRB in October 2012 ALICE© | MB | 09/06/2012 | Y. Schutz2

3. LHC SCHEDULE ALICE© | MB | 09/06/2012 | Y. Schutz 3

4. LHC SCHEDULE … OUR GUESS FOR PA 2012-2013 ALICE© | MB | 09/06/2012 | Y. Schutz4

5. LHC SCHEDULE … OUR GUESS 2014: no data ALICE© | MB | 09/06/2012 | Y. Schutz5

6. LHC SCHEDULE … OUR GUESS 2015-2017: standard years ALICE© | MB | 09/06/2012 | Y. Schutz6

7. COMPUTING MODEL PARAMETERS ALICE© | MB | 09/06/2012 | Y. Schutz 7

8. COMPUTING MODEL PARAMETERS … FROM 2012 DATA PROCESSING CPU power ALICE© | MB | 09/06/2012 | Y. Schutz8

9. COMPUTING MODEL PARAMETERS … FROM 2012 DATA PROCESSING Data size ALICE© | MB | 09/06/2012 | Y. Schutz9

10. REQUIREMENTS ALICE© | MB | 09/06/2012 | Y. Schutz 10

11. REQUIREMENTS CPU ALICE© | MB | 09/06/2012 | Y. Schutz11 KHEP06 +10% +20% +56% +16% +20% +8%

12. REQUIREMENTS TAPE ALICE© | MB | 09/06/2012 | Y. Schutz12 PBytes +20% +9% +35%

13. REQUIREMENTS DISK ALICE© | MB | 09/06/2012 | Y. Schutz13 PBytes +20% +28% +20%

14. BEYOND 2017 After LS2 : o Tape +163 PB (× 3) o Disk +125 PB (× 2) ALICE© | MB | 09/06/2012 | Y. Schutz14