Indeed. 'Cuda's are known for their quiet running.
High pitched whines is a sign that the motor/bearings are failing.
Backup your data ASAP and see if the drive is still covered by its warantee. If so, RMA it.
If not, tough luck and get a new one.
<b>My CPU is so powerful its faster than Melb_Angel's Laptop!</b>
<i>(Plus it's not pink)</i>