Data Transfer Tools

The goal of this section is to help you maximize your wide-area network bulk data transfer performance by using file transfer tools that are designed to maximize network throughput. A number of tools are described below.

Recommended Tools

For most use cases we recommend using either Globus Online or GridFTP for reasons given in the background section.

Sample Results: disk-to-disk testing from Berkeley, CA to Argonne, IL (near Chicago). RTT = 53 ms, network capacity = 10Gbps, RAID = 4 disks, RAID Level-0. Note that to get more than 1 Gbps (125 MB/s) disk to disk requires RAID.

Tool Throughput
scp 140 Mbps (17.5 MB/s)
HPN patched scp, 1 disk 760 Mbps (95 MB/s)
HPN patched scp, RAID disk 1.2 Gbps (150 MB/s)
GridFTP, 1 stream, 1 disk 760 Mbps (95 MB/s)
GridFTP, 1 stream, RAID disk 1.4 Gbps (175 MB/s)
GridFTP, 4 streams, RAID disk 5.4 Gbps (675 MB/s)
GridFTP, 8 streams, RAID disk 6.6 Gbps (825 MB/s)


Using the right tools, you should be able to move 1 TB between sites in less than 8 hours.  Read More

Command Line Tools

Information on various Unix-based file transfer tools.  Read More



Secure online service for easy, fast, reliable file transfer.  Read More

GridFTP Quick Start Guide

ssh-based GridFTP Quick Start Guide  Read More

scp and sftp

Why to avoid use of these tools.  Read More

Commercial Tools

Information on Commercial Tools  Read More

QUIC (Quick UDP Internet Connections)

QUIC (Quick UDP Internet Connections, pronounced quick) is an experimental transport layer network protocol designed by Google.  The overall goal is to reduce latency compared to that of TCP.  Think of QUIC as being similar to TCP+TLS+HTTP/2 implemented on UDP.  Because TCP is implemented at the lowest levels of machinery (operating systems, routing firmware), making changes to TCP is next to…  Read More

DOE Site's Data Transfer Nodes

Information on the DTN nodes at the DOE supercomputer centers: NERSC, ALCF, and OLCF.   Read More

Say No to scp

Why the standard scp/sftp tools will never work well on a high-speed WAN.  Read More