You can use Microsoft's built in programs or there are many very inexpensive copy programs, someone recently told me of Second Copy $29.00. You can create more than 1 Snapshot for your Target as well.
I use "robocopy," which is a tool that microsoft distributes (you can find it for free on their website). It's easy to automate, and it also will only copy files if they have been changed, which is nice. It's not as good as rsync for linux, but it works good enough if you have lots of bandwidth. Just be careful if you use the /PURGE or /MIR options with robocopy.