Hi ibook_steve,
I found out what the problem was.
The files were written by amtu (amazon merchant software) and had the destination /Volumes/RemoteVolume/Path/bla/bla/
Somehow, the connection to the remote volume broke at night, the amtu didn't find the /Volumes/RemoteVolume/ path and created a directory inside /Volumes/ with the name of the remote volume.
The result of that:
I had a new directory inside /Volumes/ which had the name of the remote volume, bu actually wasn't the remote volume. In the finder the actual remote volume was shown, in the terminal I was in the directory /Volume/RemoteVolume which wasn't the remote volume but looked like it.
Strange stuff that got me confused
Thanks for your reply though.
Greetings from Germany
dha