r2 - 02 Feb 2010 - 13:34:31 - KaushikDeYou are here: TWiki >  Admins Web > MinutesDataManageFeb2



Minutes of the US ATLAS Data Management meeting, Feb. 2, 2010
  • Previous meetings and background : IntegrationProgram
  • Coordinates: Tuesdays, Noon Central
    • (605) 715-4900, Access code: 735188; Dial *6 to mute/un-mute.


  • Meeting attendees: Armen, Saul, Wei, John, Patrick, Hiro, Michael, Bob, Wensheng
  • Apologies:
  • Guests:

Topics for this week

  • Space Usage - Armen
    • MCDISK usage at BNL from Hiro's monitoring 850 TB - 56% ESD, 28% AOD, + RDO etc
    • DQ2 gives higher number (by 100-200 TB) vs Hiro's monitoring
    • Hiro deleted _sub datasets older than 60 days - only from DQ2 central catalog (reduces double counting in DQ2)
    • srm monitoring shows 100 TB drop today - not understood, Armen will follow up
    • Hiro will provide breakdown by project name
    • Comparison with popularity database - long term goal
    • Check if ESD's generated in the US are being kept on tape - Kaushik
  • PRODDISK cleaning and consistency - Charles, Hiro
    • DQ2 api change - cleanse.py may now be triggering central deletion?
    • Will re-discuss next week
    • Hiro will follow up with Charles - all sites should update cleanse.py after this is fixed
  • Tier 2 USERDISK cleanup - Hiro, Armen
    • Hiro is scanning - work in progress
    • Will also include some Tier 3 sites (those involved in pathena bases analysis)
  • Hot issues
    • Any site running pathena must have HOTDISK? Armen will check for all US sites.
  • AOB
    • Should we meet bi-weekly? 1 vote - yes, 1 vote - no, need weekly when we get data, 1 vote - lets continue weekly for a few weeks till we run out of things to discuss
      • Conclusion - we will meet next week!

-- KaushikDe - 02 Feb 2010

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