Name: RAL Tier1 Experiments Liaison Meeting
Start: 2021-07-07T13:30:00+01:00
End: 2021-07-07T14:30:00+01:00
Location: RAL R89

- 13:38 → 13:39
  
  Major Incidents Changes 1m
- 13:39 → 13:40
  
  Summary of Operational Status and Issues 1m
  
  https://stfc365.sharepoint.com/:w:/r/sites/RAL-LCG2Tier1Liaison/Shared%20Documents/General/Weekly%20Reports/Weekly%20Report%205%20July%202021%20.docx?d=wb14eb80bd2a3413bab99eb7abb877752&csf=1&web=1&e=1ECJn9
  
  Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))
  
  Tier1WN20210707.pdf
  
  Tier1WN20210707.pptx
  
  Weekly Report 5 July 2021 .docx
  
  Weekly Report 5 July 2021 .pdf
- 13:40 → 13:41
  
  GGUS /RT Tickets 1m
  
  https://tinyurl.com/T1-GGUS-Open
  https://tinyurl.com/T1-GGUS-Closed
- 13:41 → 13:42
  
  Site Availability 1m
  
  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
- 13:42 → 13:43
  
  Experiment Operational Issues 1m
- 13:44 → 13:45
  
  VO-Liaison ATLAS 1m
  
  Minutes
  
  Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Dr Tim Adye (Science and Technology Facilities Council STFC (GB))
  
  20210707_WN_update.pdf
  
  ATLAS requesting 20GB/core max work dir size to help with merging jobs:
  Should be ok on all tranches; 2019 a bit tight, if Xcache is included.
  
  wv-2019-dell: 3.2T for 128 nodes; e.g. 25 GB/core
  wn-2018-xma: 3.3T / 64: 50
  wn-2017-dell: 3.5T / 64
  wn-2017-xma: 3.3T / 56
  wn-2016-dell: 5.0T / 40 (+running reduced slots)
  wn-2015-xma: 3.4T / 32 (+running reduced slots)
  wn-2015-hpe: 3.4T / 32 (+running reduced slots)
  wn-2014-viglen-highmem: 3.4T / 32 (+running reduced slots)
  
  Major problems with Rucio on Monday night; put sites into test till afternoon.
  
  Still need to discuss about the RAL / ATLAS discrepancy of HS06 values (
- 13:46 → 13:47
  
  VO Liaison CMS 1m
  
  Minutes
  
  Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))
  
  Screenshot 2021-07-07 at 12.50.35.png
  
  Screenshot 2021-07-07 at 12.58.01.png
  
  Some SAM test SRM/tape endpoint failures on Monday/Tuesday. Castor team found there were a lot of requests in the system and it was having an impact on all VOs. Possibly caused by some tests being performed by LHCb, reading from Castor buffer, but there were also a lot of reads from NA62.
  
  Job efficiency is going through a good period, this is due to a job mix including a very large proportion of GEN-SIM jobs which do not use significant I/O.
- 13:48 → 13:49
  
  VO Liaison LHCb 1m
  
  Speaker: Raja Nandakumar (Science and Technology Facilities Council STFC (GB))
  
  LiaisonMeetingReport-7July2021.pdf
- 13:52 → 13:53
  
  VO Liaison Others 1m
  
  07_07_2021.pdf
  
  07_07_2021.pptx
- 13:53 → 13:54
  
  Experiment Planning 1m
- 13:54 → 13:55
  
  Dune/protoDune 1m
- 13:55 → 13:56
  
  Euclid 1m
- 13:56 → 13:57
  
  SKA 1m
- 13:57 → 13:58
  
  AOB 1m
- 13:58 → 13:59
  
  Any other Business 1m
  
  Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))

RAL Tier1 Experiments Liaison Meeting

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RAL R89