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Imperial College Status for SC3

Detailed report on UK's SC3 Imperial College preparation status includes storage & network capacity, configuration challenges, software deployments, and communication issues. Preparation questions and necessary steps for success are addressed.

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Imperial College Status for SC3

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  1. Imperial College Status for SC3 Owen Maroney UK Service Challenge 3 Phone Conference May 12th

  2. Imperial (London Tier-2) • SRM status • Installing dCache SRM on test nodes • Configuration very complex! • Hope to move to dedicated production server RealSoonNow™ • Issues need resolving: • Which ports need to be open through firewall • Using pools as VO filespace quotas • Optimum local network topology • Expected communications between: admin node, pool nodes, farm nodes outside world. • Experiment (CMS) software • Phedex deployed, but not tested • PubDB in process of deployment • Some reconfiguration of farm was needed to install CMS analysis software • What else is necessary? Lack of communication from CMS. UK preparation report for SC3

  3. Imperial (London Tier-2) • Storage capacity • 1.5TB CMS storage available for SC3 • 1.5TB for all other VOs. May be partially available • Potential 0.5TB other space may be made available • May purchase more if needed • BUT NEED TO KNOW IF THIS WILL BE THE CASE!!! • Network capacity • Farm on 100Mb connection. • 1Gb connection to all servers. • Bottleneck: 400Mb firewall. • Two separate firewall boxes can use both • Or upgrade to 1Gb firewall UK preparation report for SC3

  4. Imperial Network 100Mb GW (farm) CISCO Gb storage storage HP2828 400Mb Firewall storage Extreme 5i GFE HP2424 HP2626 UK preparation report for SC3

  5. Imperial (London Tier-2) • Questions: • How much storage will we need? • Which additional experiment specific services need deploying? • (eg. Databases?) • What additional grid middleware is needed • eg. FTS? • What are the full set of pre-requisites before SC3 can start • Eg. Monte Carlo generation and pre-distribution • Metadata catalogue preparation • What defines success? UK preparation report for SC3

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