RAL Tier1 Experiments Liaison Meeting

Wednesday 8 Feb 2023, 12:30 → 14:30 Europe/London

Access Grid (RAL R89)

13:00 → 13:01 Major Incidents Changes

13:01 → 13:02 Summary of Operational Status and Issues

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))

Weekly Report 08 February 2023 (1).docx

Weekly Report 08 February 2023 (1).pdf

13:02 → 13:03 GGUS /RT Tickets

https://tinyurl.com/T1-GGUS-Open
https://tinyurl.com/T1-GGUS-Closed

13:04 → 13:05 Site Availability

https://lcgwww.gridpp.rl.ac.uk/utils/availchart/

https://cms-site-readiness.web.cern.ch/cms-site-readiness/SiteReadiness/HTML/SiteReadinessReport.html#T1_UK_RAL

http://hammercloud.cern.ch/hc/app/atlas/siteoverview/?site=RAL-LCG2&startTime=2020-01-29&endTime=2020-02-06&templateType=isGolden

13:05 → 13:06 Experiment Operational Issues

13:15 → 13:16 VO Liaison CMS

Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))

Dealing with a few requests from CMS to place dummy files in Echo and make certain locations writeable in order to 'make new SAM tests work'. Not as straightforward as it sounds.

 

Still considering removing gsiftp tests from SAM/site status.

 

Changed RALPP and Bristol (and some small T3s) from using RAL FTS to CERN FTS due to high failure rate with some davs transfers. Their poor transfer efficiencies are now much improved.

13:16 → 13:17 VO-Liaison ATLAS

Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)

13:20 → 13:21 VO Liaison LHCb

Speaker: Alexander Rogovskiy (Rutherford Appleton Laboratory)

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pres_liaisons.pdf

1. There were problems with file uploads from WN to CERN after moving to LHCONE. The nodes were brouht back to "standard" network, after that the errors disappeared
2. Potentially huge amount of Dark Data was found by Chris, investigation is in progress. Calculation of the cumulative size of the provided list was requested.

13:25 → 13:28 VO Liaison LSST

Speaker: Timothy John Noble (Science and Technology Facilities Council STFC (GB))

13:30 → 13:31 VO Liaison Others

13:31 → 13:32 AOB

13:32 → 13:33 Any other Business

Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))