If you are experiencing problems backing up files oder directories containing german 'Umlaute' you need to add the following 4 lines to your dsmc init script:

lang="de_DE.UTF-8"
export LC_CTYPE="$lang"
export LANG="$lang"
export LC_ALL="$lang"

In some environements UTF8 won't work. Try

lang="de_DE@euro"

instead