@weihangT 

There are numerous brands and models of hard drives on the market, and quality can vary, which makes compatibility issues hard to avoid. You can try following the suggestions, if it doesn't help, you may want to consider using another hard drive. We recommend choosing a model listed in the compatibility list.

• Ensure the hard drive can be recognized and function correctly on other devices, like a computer. 
• Make sure the hub is powered off when installing the hard drive. Try to restart the hub as well.