Hm, not sure what you mean with "df".
But here are some more details:
The server is installed on a 250GB harddrive, so there is plenty of space for all kinds of data. The idea is, to create a bunch of directories that can be accessed over the lan by different windows clients.
All that works fine so far, the only problem is, that the windows clients only see a 7.5GB partition which they can access.
My understanding is, that each time I create a user (adduser...) in the debian system, it creates a corresponding home/user folder which is the standard folder for that user. Is there any way to make that folder bigger right from the start, or does linux not even care about that and it just appears to the win clients as a 7.5GB partition?
So, my question is, how can I make those partitions / folders for the win clients bigger?