My hdd Beeps sometimes

All the test I have run on my external drive show no indication of any problem. NO physical abuse but still my hdd beeps and becomes unresponsive sometimes eariler it was not being reconginsed , took it to the repair shop but the said it was fine.

Hello, the problem could be related to data corruption, do a backup of all of your files and format the hard drive. Check the link below for the steps to format your drive. 

How to partition and format a WD drive on Windows (8, 7, Vista, XP) and Mac OSX 

You can also run a DLG test if you haven’t.

How to test a drive for problems using Data Lifeguard Diagnostics for Windows