1. FP6−2004−Infrastructures−6-SSA-026409 www.eu-eela.org E-infrastructure shared between Europe and Latin America VoD – Video on Demand Final Report Alexandre Porto PESC – COPPE UFRJ / CEDERJ Presented by yours truly, Pedro Rausch First EELA GRID School (EGRIS-1) The Lost Island, 15.12.2006

2. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 2 Outline Original Architecture Proposed Architecture Demo

3. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 3 Original Architecture Objective is to serve Course Material, to several clients, possibly from multiple sources at the same time Multi-process, multi-threaded server 100.000+ lines of source code Complex interactions between three parties Storage Server –Responsible for serving datablocks to requsting clients RandomIO (RIO) Server –Responsible for keeping track of where datablocks are, and choosing an appropriate Storage Server RIO Shell (riosh) –RIO Server Client. Can use additional software to display content

4. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 4 Original Architecture riosh RIOServer Storage Server Datafile Storage Server Datafile Storage Server Datafile

5. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 5 Proposed Architecture Main concern: Change as little as possible the source code Solution: RIOServer and Storage Servers on VO- BOXes, Datafiles on Storage Elements, accessible on demand by the local VO-BOX Rationale for the usage of VO-BOXes: –High latency of WMS submission –Wouldn’t work on high load periods –Why waste a possibly powerful processor (WN) for what is probably the dumbest job on earth: Grab a block from the disk and shove it down a network pipe!

6. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 6 Proposed Architecture riosh RIOServer Storage Server Datafile Storage Server Datafile Storage Server Datafile UI VO-BOX VO-BOXes Storage Element

7. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 7 Demo Now, here’s the show!!! No sound, tough…. The machine is not playing nice these days

8. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America The Lost Island, First EELA GRID School (EGRIS1), 15.12.2006 8 Questions?