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    RAL Tier1 Experiments Liaison Meeting

    → Europe/London
    Access Grid (RAL R89)

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    RAL R89
    RAL Tier1 Experiments Liaison Meeting
    Zoom Meeting ID
    66811541532
    Host
    Alastair Dewhurst
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      • 14:00 → 14:01
        Major Incidents Changes 1m
      • 14:01 → 14:02
        Summary of Operational Status and Issues 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB)), Kieran Howlett (STFC RAL)
        Weekly Report 27 Septemberr 2023 - Copy.docx
        Weekly Report 27 Septemberr 2023 - Copy.pdf
      • 14:02 → 14:03
        GGUS /RT Tickets 1m

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

      • 14:04 → 14:05
        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

      • 14:05 → 14:06
        Experiment Operational Issues 1m
      • 14:15 → 14:16
        VO Liaison CMS 1m
        Speaker: Katy Ellis (Science and Technology Facilities Council STFC (GB))
          

        Not a bad week. Generally green SAM tests, although the last 24 hours have some failures.

        Katy is testing CMS T1s for disk write performance. Did this for RAL before GridPP50, but would like to re-test. However, do not want to re-test until new gateways are in place. Also need to wait until after the Echo re-boot tomorrow. 

      • 14:16 → 14:17
        VO-Liaison ATLAS 1m
        Speakers: James William Walder (Science and Technology Facilities Council STFC (GB)), Jyoti Prakash Biswal (Rutherford Appleton Laboratory)

        Large backlog of transfers writing to Echo, including from Antares.

        Staged files, being evicted before transfers.  The Error message in FTS for this error (due to the recent fix) is horrendous. 

        Might provoke a move away from multihop ... 

         

        ATLAS storage usage of ECHO appears to show it writing above the quota'd watermark. to be followed-up. 

      • 14:20 → 14:21
        VO Liaison LHCb 1m
        Speaker: Alexander Rogovskiy (Rutherford Appleton Laboratory)
      • 14:25 → 14:28
        VO Liaison LSST 3m
        Speaker: Timothy John Noble (Science and Technology Facilities Council STFC (GB))
      • 14:30 → 14:31
        VO Liaison Others 1m
      • 14:31 → 14:32
        AOB 1m
      • 14:32 → 14:33
        Any other Business 1m
        Speakers: Brian Davies (Lancaster University (GB)), Darren Moore (Science and Technology Facilities Council STFC (GB))