File Transfers to Support TSI/eScience

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Presentation transcript:

File Transfers to Support TSI/eScience Use circuit-requestor to establish a dedicated circuit connecting ORNL and MCNC Adjust kernel parameters for high-throughput connections Run VSFTP for file transfer Mark McGinley August 23, 2006

Today’s Demo Cheetah ORNL Cheetah MCNC Cheetah Atl

Demo settings zelda4 wuneng CPU Dual 2.8GHz Xeon memory size 2GB 1GB disk system 2x10000rpm SCSI RAID-0 2x15000rpm SCSI RAID-0 kernel version 2.6.17-1.2174_FC5smp file system ext3 rmem_default (in bytes) 8388608 rmem_max (in bytes) 16777216 wmem_default 4096000 wmem_max tcp_rmem (in bytes; min, default, max) 4096 8388608 16777216 tcp_wmem 4096 4096000 16777216

Experimental Results Test Specifics: ~1GB transfer size, 17ms RTT Std.Dev: 7 Mbps

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