vs2010 Managing file transfer over PTP link.

I've got something I want to jump on on Monday.

I'm developing for a machine at a remote location. On that machine I'm accruing data at a rare max of 105MBps and a min of 20KBps but only during daylight hours. Trials show that the file size is completely unpredictable (weather dependent) we don't yet have a reliable mean. I've got to transmit as much as I can of this data back to another machine on the coast. The link rate is ~90 Mbps or ~11MBps but we expect down time, ironically when the data rate is at its highest.

At this stage I'm completely open to suggestions. I have an C++ app writing files to a local drive. I intend to write a C# app that monitors that local drive looking for files to transfer and then delete when this transfer is successful. It will also delete select files when the local drive is full.

What net objects should i be looking at, what i should I use for...

• Monitoring a local drive for changes
• Testing for connection. Ping?
• Transferring files. Looping File.Copy in a try block??
• Checking the remaining hard drive space. IO namespace?

I think of 2 options, first is to use FTP, that might be the most robust solution for a "bad line", because the possibility of resume.
Second option is to use a a simple wcf service, use the filesystemwatch, if a new file is created upload it immateriality.

Cheers Lightning,

I had not considered FTP, I'll have a play with that today.

Your latter suggestion is pretty much what I thought I would end up using.

I'll post with how I get on.