I am attempting to set a weekly backup of my Volume 1 onto Volume 2. I assume I should select the Incremental box, as I would only need to backup/copy what has changed, but am not clear if the "type" is File or Folder? Wouldn't Folder copy everything within the folder? but not sure that is happening...
Just remember "incremental" will only backup the changes. so here is an example i noticed.
I have Volume 1 full of content and my kids movies. so i selected incremental backups for family photos and kids movies. Works great but i started to notice larger folder sizes on volume_2 than the source volume_1
Closer look and this is what i noticed.
example
Volume_1 has folder "Finding nemo" with finding nemo.avi and folder.jpg
Volume_1 has folder "photos" and "undeveloped photos" ach contains photos.
Well my wife copies photos from camera to "undeveloped photos" then after uploading them to website, they are eventually movied to "photos"
so on volume_2 (depending on how fast my wife does this) Volume_2 ends up with the same photos in the "undeveloped folder" and in the "photos" folder
same for the movies, if i make a change to the folder structure like this
Moved "finding nemo" folder into a master folder called "annimation"
now Volume_2 has 2 copies of find nemo, 1 in the original "finding nemo folder" and a new one in the "annimation" folder.
With 1000's of folders and files you can see how this adds up quick
just keep this in mind