1. JTE - HPC File Systems: From Cluster To Grid October 3-4, 2007, IRISA, Rennes ACM SIGOPS France

2. HPC File Systems: From Cluster To Grid Gather major actors in file systems and data management fields  Get a ‘snapshot’ of the different works currently led  Academic / Industrial  Make a point of storing data at cluster and grid levels  Is storage research at cluster level over ?  How should we approach/deal with storage at grid levels ?  Exchange ideas, suggestions / remarks  Look ahead ! 

3. Overview of the event 4 sessions: 11 talks + open discussions  File systems at cluster level (chair: Christine Morin)  2 talks  Data management/FS at grid level (1/2, chair: Pierre Sens)  4 talks  Data management/FS at grid level (2/2, chair: Yves Denneulin)  3 talks  Future directions for HPC File systems (chair: Adrien Lebre)  2 talks + open discussions 

4.  Otherwise: Restaurant “L’ouvrée”, 18 place des Lices (http://www.louvree.com/plan.asp)http://www.louvree.com/plan.asp  Last talk will finish around 6:45 pm  Enjoy the city center, Rennes is beautiful Few informations … At IRISA  All talks will be in the room (‘Michel Métivier’ room),  2 Coffee breaks just on the left (‘Valorisation’ room)  WIFI access: guest-irisa (DHCP connection)  In Rennes  Dinner  meeting point 8:45 pm in front of the Britany parliament 

5. If it rains: take an umbrella, you are in Rennes, it will not last ;)

6. HPC File Systems: From Cluster To Grid Any questions ? 

7. HPC File Systems: From Cluster To Grid Session 1: HPC File Systems at Cluster Level  High Performance Lustre Storage Architecture at CEA/DIF  Stéphane Theill - CEA - France  Towards An Integrated Cluster File System  Adrien Lebre - INRIA - France 

8. HPC File Systems: From Cluster To Grid Session 2: Data Management/FS At Grid Level (1/2)  LHC Data Management On A Global Grid  Fabio Hernandez - CC IN2P3 - France  The VISAGE Project - Storage Virtualization at Grid Level  François Thiebolt, Salam Traboulsi - IRIT - France  The GEDEON Project - Data, Meta-Data and Databases  Yves Denneulin - LIG - France  XtreemFS, An Object-Based File System For Large Scale Federated IT Infrastructure  Jan Stender - ZIB - Germany 

9. HPC File Systems: From Cluster To Grid Session 3: Data Management/FS At Grid Level (2/2)  GFARM, A Global File System  Osamu Tatebe - Univ. Of Tsukuba - Japan  JuxMem: A Data Sharing Service For The Grid  Loic Cudennec - INRIA - France  Pastis: A P2P File System For Persistant Large-Scale Storage  Pierre Sens - Univ of PARIS VI - France 

10. HPC File Systems: From Cluster To Grid Session 4: Future Directions For HPC File Systems  Storage Virtualization From Clusters To Grid  Marc Descamps, Yoann Lechevalier, Mathieu Avila Seanodes - France  Panasas Parallel File System and pNFS  Sven Neirynch - Panasas EMEA division 

11. Open discussions : storage at cluster level (guidelines)  Who need/require HPC File Systems ? (Web server/ Multimedia / HPC : simulation,... / Bank )  Usual data-sets ?  Size (GB, PB, larger ) ?  Access : local/remote - distributed/parallel ?  State of current solutions for each domain (strength / weakness)  Are there particular research investigations to realize?  Use of the current hierarchical structure of a FS ?  Manage database and FS in a common or in a distinct way ?  Historical model of HPC clusters : compute vs storage nodes ? ...  HPC File Systems: From Cluster To Grid

12. Open discussions: storage at grid level (guidelines)  Storage at Grid level (multi-sites, cluster of cluster):  A real demand for sharing data between several sites ?  If Yes, in what cases ?  What are the current solutions ?  What are the current answers from Industrial ?  Grid File Systems and Virtual Machines ?  Recovering mechanisms in time (sizeof DATASETS) Parallel recovering mechanisms  … 