Original website: http://hules.free.fr/wmhdplop/
Yet another stupid dockapp which may improve your productivity. Or not.
wmhdplop monitors your hard drives and displays visual information about their activity (read, write, swapin, swapout), and optionally (if hddtemp is running as a daemon), displays their temperature/status.
A newer version may be available in the Window Maker dockapps git repository:
git clone https://repo.or.cz/dockapps.git