LCG Experiment Coordination Meeting

Monday 21 May 2007, 14:20 → 16:25 Europe/Zurich

28-R-015

Coordination meeting between LCG service and LHC experiments, focussing on issues for the coming weeks / months.

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(Leader code is 0166111)

14:30 → 14:40 CMS Experience with FTS 2.0

Speaker: Daniele Bonacorsi (INFN)

Slides 070521_PhEDExFTS2preInt_DBonacorsi.pdf

14:40 → 14:50 FTS 2.0 pilot service and schedule / actions for move to production

Test schedule for other experiments / sites

14:50 → 14:55 FTS service monitoring requirements

From CMS "top 5" issues presented to MB in Prague:

• transfers and queues monitor
• backup servers
• heartbeat and similar ”service-is-up" monitoring

Can we come to a common requirement / proposal?

14:55 → 15:00 Status of WLCG Q1 Tx-Ty Transfer Milestones - aka Multi-VO tests

1. Demonstrate Tier0-Tier1 data export at 65% of full nominal rates per site using experiment-driven transfers

   Mixture of disk / tape endpoints as defined by experiment computing models, i.e. ~30% tape for ATLAS; transfers driven by experiments

   Period of at least one week; daily VO-averages may vary (~normal)

2. Demonstrate Tier0-Tier1 data export at 50% of full nominal rates (as above) in conjunction with T1-T1 / T1-T2 transfers

   Inter-Tier transfer targets taken from ATLAS DDM tests / CSA06 targets

3. Demonstrate Tier0-Tier1 data export at 35% of full nominal rates (as above) in conjunction with T1-T1 / T1-T2 transfers and Grid production at Tier1s

   Each file transferred is read at least once by a Grid job

   Some explicit targets for WMS at each Tier1 need to be derived from above

15:00 → 15:15 SRM v2.2 site / experiment test schedule and July pre-GDB meeing

July pre-GDB meeting

15:15 → 15:20 Up-coming service interventions

Possible slots prior to start of Dress Rehearsals and Pilot LHC run:

• Slot in June, e.g. June 11 (following weeks are CMS / ATLAS weeks respectively).
• Week of CHEP 2007?? (1st week of September)

Foreseen interventions:

• Move of CASTOR DBs to better h/w (to be done by VO - service interruption involved).
• Deployment of new CASTOR LSF plug-in
• Oracle Critical Patch updates
  • 17 April 2007 (skipped)
  • 17 July 2007
  • 16 October 2007
  • 15 January 2008

15:20 → 15:25 AOB