Q:

Unix - server gets polluted - find out were new files get stored

My server has no available space left on disk. Yesterday, I deleted 200 GB Data, today it is full again. Some Process must write some files. How do I find out where possibly new huge files are stored?

A:

Check df to check partition usage.
Use du to find sizes of folders.
I tend to do this:
du -sm /mount/point/* | sort -n

This gives you a list with the size of folders in MB in the /mount/point folder.
Also if you have X you can use baobab or similar utilies to explore disk usage.
PS: check the log files. For example if you have Tomcat installed it tends to generate crazy amount of log if not configured properly.

