I'm on Dropbox Pro. I have about 1TB worth of video files on an external hard drive which I need to send to a client. My plan was to ZIP them into 50GB chunks and upload directly via the web interface. No such luck -- the transfers always got stuck about 3/4 through with 15 minutes left to transfer. So I downloaded the desktop app, hoping this would make it more stable, which it does, as I've managed to upload one file with the Sync now. However, this requires me to copy the files from the external hard drive to the sync folder which is on my internal hard drive, which cannot accommodate an additional 1TB worth of files.
Also, although I've set the preferences to "online only", the copied files remain on my internal hard drive, which doesn't sound right. Since I have slightly over 100GB of free space on the internal hard drive, I can fit two such 50GB files on the internal drive at time. So, three questions:
1A) Once the file has been synced to Dropbox online (green check mark), can I set it to "online only" to remove it from my local drive?
1B) Why doesn't that happen automatically although my preferences are set to "online only" for new files?
2) What is the best approach to this task of reliably uploading a bunch of 50GB files from an external hard drive directly to Dropbox, preferably without having to copy them to the internal hard drive first?