Mount external USB expansion disk with NTFS filesystems 
with the (superuser) command:

su root
password:

mount -t ntfs-3g /dev/sdd1 /ntfs

[root@aidas1 /]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_aidas1-lv_root
                       50G   33G   15G  69% /
tmpfs                 3.9G  4.3M  3.9G   1% /dev/shm
/dev/sda1             485M   61M  399M  14% /boot
/dev/mapper/vg_aidas1-lv_home
                      860G  201M  816G   1% /home
/dev/mapper/Data1-data10
                      1.8T  1.4T  309G  83% /data10
/dev/sdd1             3.7T  1.3T  2.4T  36% /ntfs