Chicago to Japan

On June 6, we transported the ~800 GB BESTDR3 data set from Chicago to Tokyo in approximately 8.65 hours. This corresponds to a tranport speed of approximately 205.3 Mb/s.

The data was transferred disk-to-disk from an NCDM server at the StarLight Facility in Chicago, USA to an NCDM machine at JGN2 Research Center facilities in Tokyo, Japan. The machines at both ends were dual AMD Opteron servers with 10 Gb/s network cards.

The data was transferred via the JGN 2 network and using NCDM's UDT transport protocol and NCDM's UDT-HTTP Gateway.

Dataset:
Sloan Digital Sky Survey BESTDR3 data set
Size: 797,455,674,880 bytes of compressed data

Transfer Speed:
Time: 8.65 hours (518m 58.825s)
Calculated Rate: 205.3 Mb/s

Software Used:
UDT v2.1
UDT Gateway v0.5 alpha

Date & Time:
June 6, 2005

Hardware:
Machine at StarLight
3U rack mount Opteron Server
Dual AMD Opteron 250 (2.4 GHz, 64 bit processors)
NICs: Neterion XFrame 10 Gb/s
OS: GNU/Debian Linux 3.1
Storage: 3WARE 4 disk raid-5 array

Machine in Tokyo
3U rack mount Opteron Server
Dual AMD Opteron 250 (2.4 GHz, 64 bit processors)
NICs: Neterion XFrame 10 Gb/s
OS: GNU/Debian Linux 3.1
Storage: 5 disk raid 0 array

Network:
The data was transferred from Starlight facility in Chicago, USA, to the JGN 2 Research Center in Tokyo, Japan, via the JGN 2 network

10 Gb/s lambda from StarLight to JGN 2
1 Gb/s copper ethernet to NCDM machine