I bumped my 2TB WD disk off my bed. It beeps nine times, then three times and then three times again. The disk spins while it beeps. Then the disk stops spinning and beeping, the light remains on. Please help!
As a recommendation, test the drive and make sure you have a backup of your files to avoid losing any data.
How to test a drive for defects or problems on a Mac
Testing a drive for problems using Data Lifeguard Diagnostics for Windows