Centos 6.x by default does not mount ntf´s disks. You need ntfs-3g
How to
wgehttp://rpms.famillecollet.com/enterprise/remi-release-6.rpm
sudo rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm
yum –enablerepo epel install ntfs-3gt http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
sudo rpm -Uvh remi-release-6*.rpm epel-release-6*.rpm
yum –enablerepo epel install ntfs-3g