I have two HDD but one of my second HDD drive showing local disk.

My second HDD is 200 Gigabytes (GB). and this HDD has 3 drives but one of the three drives is showing a local disk and can not be useable. why it happened and how can I get rid of it? other drives are working properly. I am using windows 10, 64-bit. Ram 4 GB and processor 2.7 GHZ. Whenever I run pc it shows scanning and repairing drive(H)...after that my pc runs well and all drive works properly except drive H