MinutesTPJan7

Introduction

• Objectives: 200 MB/s throughput sustained disk-to-disk Tier1-Tier2
• Other meetings and background : IntegrationProgram
• Coordinates: Mondays, 2:00pm Eastern
  • Phone: (605) 475-6000, Access code: 735188; Dial 6 to mute/un-mute.
• Check out status via the BNL/SLAC netflow plots at Tier-2 Netflow

Attending

• Meeting attendees: tbd
• Apologies:

Overview (Shawn)

Discuss current and near-term future plans for throughput testing.

• Status report on "load testing": Hiro
• 200MB/s for 20 minutes has been attained for AGLT2. This can be seen in
  
  
• Discussion of current testing and implication for normal data operations: All
• Status of Jay's testing and any changes required based upon current results: Jay
  • Hiro saw a drop of data transfer rates after transferring 2GB using FTS but Jay saw erratic rates using 3GB glite-url-copy to uct2-dc3.uchicago.edu: 3, 23, 9, 25, 10, 18 MB/s and relatively even 3GB glite-url-copy to umfs05.aglt2.org of 75, 75, 75, 76, 47, 65, 66, 64 MB/s.
  • Cannot get enough samples for uct2-dc3.uchicago.edu using globus-url-copy
  • Transfer to other hosts using globus-url-copy are also even.
  • Still working on repository web site to easily provide live test results ro saw a drop of data transfer rates after transferring 2GB using FTS but Jay saw erratic rates using 3GB glite-url-copy to uct2-dc3.uchicago.edu: 3, 23, 9, 25, 10, 18 MB/s and relatively even 3GB glite-url-copy to umfs05.aglt2.org of 75, 75, 75, 76, 47, 65, 66, 64 MB/s.

Tier1 action items

• Status of DDM system and architecture: Dantong
  • Is the current GridFTP? door config working OK?
  • Where are the bottlenecks?
  • Diagram of typical data movement for IN or OUT of BNL

AGLT2

• Site report and plans: Wenjing

MWT2

• Site report and plans: Sarah

NET2

• Site report and plans: Saul?

SWT2

• Site report and plans: Patrick or Horst?

WT2

• Site report and plans: Wei

Wisconsin

• Site report and plans: Bruce?

-- RobertGardner - 04 Jan 2008