We use RoboCopy at work to mirror our active batch servers to our backups. It works well, is fast enough, and is very reliable. I'm not enamored of it though.

However, since the SysAdmins and DBAs want something to manage, and they put RoboCopy into place, I'm happy to leave it to them. Even if I had a better widget on the shelf.

Just for reference, our servers hold about 700G of data. We obviously don't copy everything every night (or it would take quite some time). But it's no slouch, either, we do at least 60G every night starting at 10:00PM, and it manages to stay out of the way of most of my batch jobs... (Thank goodness for multiple fibrechannel cards and the EMC box...)

--roboticus