There are multiple methods available to support a transfer of large data files including but not limited to setting up an FTP client on Citrix ShareFile, utilizing Microsoft OneDrive solution, using physical media shipment (shipping a hard drive), and of course, most traditional and old fashion way is to complete transfer over VPN.
Many companies still prefer using the VPN method; however, there is a number of risks and disadvantages that may affect the success of your file copy. The most common issue is the file transfer can be easily interrupted due to high saturation of the Internet bandwidth. Losing network connection a few hours into the transfer will cause losing the data in transfer and even file corruption; this is a big point of failure and users need to be familiar with ways to mitigate this risk. The second risk is a high saturation of the VPN Connection. At a corporate level, when you take all the bandwidth for your file transfer, other users may have limited capability to complete daily tasks due to slow network performance. Another critical factor to consider is VPN traffic control. You need to setup max bandwidth usage allowed for data transfer via VPN. Their many critical non VPN operations to be run from the Internet, so you need to control the amount of bandwidth taken by VPN traffic. From a security standpoint, the last but not least VPN challenge is validating that transferred file is delivered undamaged. There are tools available to check your file integrity. You can reference Dorian’s Blog to see more details on how to copy large files over VPN (http://dorianblog.info/how-to-copy-large-files-over-vpn/).
There are different VPN protocols available on the market today, including Open VPN, IPSec, SSTP and others. Open VPN has a better reputation as it is the only provider that delivers a high speed of data transfer and high level of security.
In today’s world of robust technology, more and more companies tend to transition to cloud-based solutions and move from TCP-based transfer technologies. There is a wide range of vendors providing cloud-based file transfer technologies. One of the latest technologies was offered by Aspera. Aspera, an IBM company, created an innovative solution to move large data at maximum speed regardless of file size, transfer distance and network conditions. Aspera’s core technology delivers unprecedented control over bandwidth, complete security, and uncompromising reliability. Aspers FASP provides an optimal alternative to traditional TCP based transport technologies (VPN). FASP is designed to deliver 100 percent bandwidth efficient transport of bulk data over any IP network – independent of network delay and packet loss – providing high- performance next-generation approach to moving bulk data.
