lufs의 ftp filesystem 참 유용하군요.
lufis 'fs=ftpfs,host=XXX,username=XXX,password=XXX' -o allow_other,direct_io,modules=iconv,from_code=euckr,to_code=utf8 /mnt/disk1 -s
lufis 'fs=ftpfs,host=XXX,username=XXX,password=XXX' -o allow_other,direct_io,modules=iconv,from_code=euckr,to_code=utf8 /mnt/disk2 -s