the problem we’re facing

• PHENIX program heavy in “ensemble” physics

  • typical day (or week) at the office: get lots of events, make foreground and background distributions, compare, improve code, repeat until published

• needs to move lots of data very efficiently

• needs to be comprehensible to PHENIX physicists

  • people are accustomed to “staging files”

• needs to work with the CAS analysis architecture

  • lots of linux boxes with 30 GB disk on each
  • main NFS server with 3 TB disk

• solution: optimized batch file mover

  • similar to Fermilab data “freight train”
  • works with existing tools: HPSS, ssh, pftp, perl

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