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CCRC’08 Weekly Update

Stay informed with the latest update on CCRC'08 activities, including data export, detector runs, and upcoming meetings. Learn about the progress made by ALICE, ATLAS, CMS, and LHCb as they prepare for the next phases. Get insights into data storage, functionality testing, and workflow evaluations. Discover important details about the Face-to-Face meeting in April and the WLCG Collaboration Workshop in April. Don't miss the chance to engage in crucial discussions and stay updated on the operational tracks planned ahead.

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CCRC’08 Weekly Update

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  1. W CCRC’08 CCRC’08 Weekly Update Harry Renshall ~~~ LCG MB, 11 March 2008

  2. Current activities (1/2) • We are now in the phase 1.5 of CCRC'08 i.e. between the February phase 1 run and phase 2 in May. There are no formally coordinated activities or metrics in this phase as yet. Currently it involves individual experiment functionality, throughput and stress testing of their computing model components and sites. • ALICE continue to exercise their data export reaching up to 300 MB/sec to their 5 major Tier1 sites, well above the required 60 MB/sec for p-p running. They plan to add RAL in the near future. • ATLAS last week performed their M6 detector cosmics run including data storage at Tier 0. 40TB of data was stored between Friday and Monday and calibration streams were sent to the planned 4 Tier 2 sites of Naples, Rome, Munich and Michigan. This week they are functionality testing Tier 1 to Tier 1 data movement to PIC. Will then distribute 20 datsets of 100 files each to other Tier 1 for multiple Tier 1 to PIC tests next week. Revolve this round all Tier 1 over next 2 months. Intensive MC production for CCRC’08 phase 2 continues. CCRC'08 MB Update

  3. Current Activities (2/2) • CMS continue preparations for the May run and a prior CMS global run in March. Reprocessing is going well with some site issues (dcache slow at FNAL and IN2P3 had disk pools problem). In T1 to T1 commissioning only the RAL to ASGC pair is missing. Their Tier 0 operations suffered from a week long instability in LSF which had hit a performance-related bug/feature in synchronising to the failover server. Automatic failover is currently disabled while this is investigated but CMS are suggesting a separate LSF instance for their Tier 0 operations. • LHCb are preparing the workflow for their stripping jobs to be part of the 4 weeks steady running at nominal rate in May. They are setting up to evaluate and act on CPU time remaining for their grid jobs and setting up SRMv2 endpoints to go into their SAM test suite. CCRC'08 MB Update

  4. Tier 0 data export 4-11 March CCRC'08 MB Update

  5. ATLAS Plans from 4 March F2F meeting CCRC'08 MB Update

  6. Reminder of next Meetings • Next CCRC’08 Face-to-Face Tuesday 1st April: • http://indico.cern.ch/conferenceDisplay.py?confId=30246 • Site focused session in the morning then Experiment and Service focused session in the afternoon. • 21st – 25th April WLCG Collaboration Workshop (Tier0/1/2) in CERN main auditorium: • http://indico.cern.ch/conferenceDisplay.py?confId=6552 • Possible themes: • WLCG Service Reliability: focus on Tier2s and progress since November 2007 workshop (1 day?) • CCRC'08 & Full Dress Rehearsals - status and plans (2 days?) • Operations track (2 days, parallel) • Analysis track (2 days, parallel) • 12th – 13th June CCRC’08 Post Mortem: • http://indico.cern.ch/conferenceDisplay.py?confId=26921 is in preparation. 6

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