Openmediavault incorrectly displays hard disk nearly full.

Hi experts,

I'm new here and have set up a system for the first time. I have connected a storage device to each USB 3.0 port. 32 GB stick and a 1 TB hard drive. Now problem is, I want to copy a 21 GB video to 1 TB hard drive and opbenmediavault is telling me that there is not enough storage, even though 915.80 GB are free.

What was noticeable was display that another 20.4 GB are required.

So for the test I pretended to copy the file to the stick >>> The same display with the same value appears!!!

Something is wrong!

Can you please help me with what I have to do.

THANK YOU VERY MUCH!

Yes, I did that. Thanks for tip!
I'll continue and report later.

What file system is best for video files and access from Windows computers.
Do you have a tip for me?