r2 - 11 May 2010 - 14:40:18 - KaushikDeYou are here: TWiki >  Admins Web > MinutesDataManageMay11



Minutes of the US ATLAS Data Management meeting, May 11, 2010
  • Previous meetings and background : IntegrationProgram
  • Coordinates: Tuesdays, Noon Central
    • (605) 715-4900, Access code: 735188; Dial *6 to mute/un-mute.


  • Meeting attendees: Charles, Saul, John, Hiro, Wensheng, Bob, Shawn, Pedro
  • Apologies: Patrick, Wei (T3 meeting)
  • Guests:

Topics for this week

  • Space status - Armen
    • NET2 is still critical. SLACT2 is also very full. AGLT2 is next.
    • Hiro will check if USERDISK cleanup (cutoff 2-3 months) will help
    • Check PRODDISK - especially SLAC, AGLT2
  • Data deletions - Armen, Wensheng
    • BNL slow deletions - reason not understood. ~400 TB dark data. Deletion tool keeps crashing.
    • Tier 2's look Ok.
    • NET2 cleanup - Wensheng will schedule cleanup ~35 TB groupmc08* datasets this afternoon (Saul's estimate ~43TB)
    • Armen sees dark data at NET2 - Saul is looking into it
  • Slow transfers to Tier 2's - Hiro
    • NET2 and SWT2 MCDISK transfers put on hold (through blacklisting)
    • GPFS2 reconfiguration helped, rates should go up soon
  • Hot issues
    • Charles - delete-obsolete? Should other sites run it? Go ahead and try at Tier 2's! Armen - please study the dump of what was deleted.
  • AOB
    • Action item - Kaushik will follow up on topic of making all US sites consistent with long/short names in LFC

-- KaushikDe - 11 May 2010

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