r4 - 25 Aug 2009 - 13:43:07 - KaushikDeYou are here: TWiki >  Admins Web > MinutesDataManageAug25

MinutesDataManageAug25

Introduction

Minutes of the US ATLAS Data Management meeting, Aug 25, 2009
  • Previous meetings and background : IntegrationProgram
  • Coordinates: Tuesdays, Noon Central
    • (309) 946-5300, Access code: 735188; Dial *6 to mute/un-mute.

Attending

  • Meeting attendees: Armen, Charles, Bob, Hiro, John, Wei, Patrick, Wensheng
  • Apologies: Pedro
  • Guests:

Topics for this week

  • Storage status - Armen
    • Tier 1 looks good (130-140 TB each DATA & MCDISK). Have 750 TB spare. Plus some more.
    • Filling up MCDISK at BNL @ ~20TB/week
    • Tier 2 reporting now working for all sites except NET2. John will look into it.
    • AGLT2 is 98% full - Bob will look into creating/cleaning more space for MCDISK
  • Dataset consistency - Charles
    • pnfs and chimera versions working well
    • xfrootd and posix versions coming soon
  • Data corruption during transfer to Tier 2
    • AGLT2, MWT2 seeing some jobs failing due to files corrupted during transfer (they have bad checksum)
    • DQ2 SS at most US sites is checking after transfer (using Hiro's code - but not same retry policy everywhere)
    • Pandamover does not check after transfer (Kaushik will follow up with Tadashi, Rob)
    • Charles iw writing checksum tool (to check all sits at site, slowly)
  • Hot issues
  • AOB
    • Hiro is helping Wisc with file cleaning issues


-- KaushikDe - 25 Aug 2009

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