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| Stephen Brooks 2005-04-11 09:01:51 | GRIDPP TIER-1 FACILITY AT RAL SUCCESSFULLY TAKES PART IN LCG SERVICE CHALLENGE 2 When LHC starts producing data in 2007, substantial data-flows of several Gigabits/s will need to be streamed between the CERN Tier-0 centre and the tape robots in each of the Tier-1 centres. To prepare for these unprecedented data rates the LCG collaboration is carrying out a series of "Service Challenges", the most recent of which (Service Challenge 2) has just been successfully completed. Over a two week period data rates of 700Megabits/second were sustained between disk at CERN and at the GRIDPP Tier-1 at RAL, overall over 60Terabytes of data were transferred. This is already a substantial achievement, but over the next year LCG intend that data rates to each of the Tier-1s will be ramped up to 2Gb/s sustained to tape with 72 hour burst rates of up to 4Gbits/s. RAL is already well placed to meet this challenge, the disk service has already been loaded tested to over 3Gbit/s (4 disk servers) and being highly modular can easily be extended (the Tier-1 has 60 disk servers at present). Work is now underway to prepare for Service Challenge 3 in July when rates to disk will increase to 1.5Gb/s and 0.6Gb/s to tape. You can find out more about the GRIDPP Tier-1 Centre at: http://www.gridpp.ac.uk/tier1a/ and more about the LCG Service Challenge at: http://service-radiant.web.cern.ch/service-radiant/. |
| [TA]JonB 2005-04-13 04:40:57 | But will that speed up my download from iTunes? |
| Stephen Brooks 2005-04-15 04:40:54 | According to this article, maybe, maybe not... http://theinquirer.net/?article=22491 |
| [TA]JonB 2005-04-17 20:42:54 | In that case, I'll only download Disco. Nobody would care about that, would they? |
