Sync large data

I have about 3 million files and folders sized (240G) on a local PC . Once the main job is synced only a thousand or so files change every day.

What I am trying to do is to sync the entire contents to a webhost via ftp and keep it updated as the files change on my local PC.

So what I need , is to transfer only the changes that happens on the files in the same time it changed on the destination .

I tried using GoodSync for this but it takes 15 hrs to analyses and by that time a number of files have changed.

Is there any software or string of batch files that would do this for me and utilize multiple connections for a ftp username?

any ideas?

You can use the attached batch script to total copy first and then incrementally, it just copies the new files and changed files.

Just curious, I also FTP files to my Domain but they are static/never automatically changing. But a question, isn't the process described one of the reasons the various Cloud storages were developed?

maybe, it looks like that

I ended up transferring the data with the backup tool called Gs Richcopy 360. This seems to have worked and is straightforward.
Thanks, FreeBooter & Berton, for trying to help:)