1. 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

2. Today’s Demo
Cheetah ORNL
Cheetah MCNC
Cheetah Atl

3. 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
_FC5smp
file system
ext3
rmem_default (in bytes)
rmem_max
(in bytes)
wmem_default
wmem_max
tcp_rmem
(in bytes; min, default, max)
tcp_wmem

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