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UK Deployment of LCG1

UK Deployment of LCG1. John Gordon CCLRC Escience Centre GridPP7, Oxford, July 2003. Disclaimer. My personal views Not widely discussed in GridPP No formal Policy but this is my area of responsibility in PMB. UK. As Ian Bird said in previous talk, LCG1 will be deployed at 10 Tier1s

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UK Deployment of LCG1

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  1. UK Deployment of LCG1 John Gordon CCLRC Escience Centre GridPP7, Oxford, July 2003

  2. Disclaimer • My personal views • Not widely discussed in GridPP • No formal Policy • but this is my area of responsibility in PMB

  3. UK • As Ian Bird said in previous talk, LCG1 will be deployed at 10 Tier1s • plus token Tier2 • Tier2s will be added through support by Tier1s • Second level support from Team LCG • So Tier1s won’t want to increase their support load until they are happy that their own deployment is reasonably stable. • Double number of sites by end of 2003? • Implies 1 Tier2 per Tier1 • UK will offer more

  4. UK Tier1 • Already in LCG0 • Ready for LCG1 • Developing Operations Centre • LCG Security Coordinator • Resources there for LHC will be deployed for LCG if experiments wish • Existing resources already fully committed until end of 2003 for • CMS DC04 simulation • Atlas DC03(?) • Hardware upgrade by end of year.

  5. UK Testbeds • Several existing UK testbeds • EDG • Application and development • BaBarGrid • SAMGrid • QCDGrid • IC Resource Broker • GridPP VO Server • TB-Support • Team, meetings, mailing lists

  6. EDG Applications Testbed • Almost all coloured sites have belonged to EDG Application Testbed at some time. • Almost all waiting to migrate to EDG TB2.0 • Should happen over summer before LCG1 will be ready for them

  7. Projected Hardware Resources Total Resources: 20042007 (note x2 scale change)

  8. ScotGrid NorthGrid SouthGrid LondonGrid

  9. UK Tier2 Centres • Four Virtual Tier2 Centres • What is a virtual Tier2? • Management domain • Shared commitments • Sign up jointly to SLAs • Common Support • Seamless when technology allows • A federated Grid • All will join LCG1 some time

  10. Joining LCG1 • So, how will we join LCG1? • Determined by • LCG Team – do they want us all at once? • Tier1 support (TB Support?) What support will there be? • Tier2s – do they want to order sites? Or have a guineapig? • Sites – they have the hardware resources, do they have the effort? • All sites should consider if they wish to join in 2003 or remain in EDG apptb, or both.

  11. Unknowns • Site Certification • How do we prove that a site is ready to connect? • Can an LCG1 resource be shared with non-LCG use? • In theory yes, but in practise?

  12. Preparations • Security and registration • Procedures defined • Site information gathering • Contacts etc, prior to joining • Join TB2.0 to gain familiarity with middleware • Migrate to LCFGng

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