My Cloud EX4 with 4-4TB Red HD

I currently have an old MyCloud EX4 with 4-red 4TB drives in it. This supposedly gives me 16TB of storage. I supposedly set the system up to utilize 8TB for data and 8TB for backup. I currently have almost 3.6TB used. I am trying to add about another 3GB of information and it says that my system is maxed out and I need to manage my storage. I was under the assumption that it wasn’t even have filled yet. When I go into the Storage menu I see RAID Volumes of 1 & 2 each showing 3.99TB. Do I have 8TB to use or not. Don’t understand why this is not allowing me to store more info. Any help would be greatly appreciated.

Hi @Aggie01,

Please contact the WD Technical Support team for the best assistance and troubleshooting:
https://support-en.wd.com/app/ask