I'm a developer .. I have avoided learning infrastructure. After all, there is enough to learn as a developer - how can I possibly have time to learn that as well. As such, I do not have a tool kit to accomplish some seemingly simple tasks, such as moving folders that have a deep folder structure or a large volume of data (or both).
Scott Hanselman has an excellent article on 3 tools to accomplish just this. Not only can you restart a copy due to a network interruption, you can copy only what has changed. Here's Scott's link
For a quick reference, here's the 3 he recommends.
RoboCopy
SyncBackSE
XXCopy