I have a general question for which I can’t find a clear answer in your FAQs.

In my Drobo I have 5 disks of 8 TB each = Raw capacity 36.38 TB

With dual redundancy, it gives 21.78 available for data.

Right ?

The Drobo created 2 volumes of 16 TB each = 32 TB

Volume 1 is occupied with 14.60 TB

Volume 2 is occupied with 5.68 TB

My question is:

If I move some TB from Volume 1 to Volume 2, will this free some total space?

What is the use of creating Volumes?