hanime

Oops my bad, I was looking at it the wrong way. The 12.9TB includes what is duplicated (as shown in DrivePool interface), which means half of it is what I've copied into the pool. I selected all files and folders within the root of the pool, and check properties to find the file size to be 6.45TB. In essence, 2x duplication will use 2x more space in the pool, 3x uses 3x more, etc.

Thank you for clearing that up. It makes more sense now. By "completely full", does that mean the whole 13.6TB from the pool of three disks I have? How is that possible with 2x duplication, because 2x duplication would take 2x more space, logically. So in my case, I transferred 12.9TB into the pool; with 2x duplication, wouldn't that take up 25.8TB?

I have 3 x 5TB drives added to my pool, and my max capacity says 13.6TB. I have set 2x duplication for the entire pool. Questions: How does 2x duplication work with 3 drives? Am I protected if one of the three drives fails? I have 13.6TB in the pool, but I was able to put in 12.9TB worth of files into the pool somehow. It says I have roughly 12.9TB duplicated files and 600GB left. If it's 2x duplication (~25TB), should it have prompted me for more space or something when I reach half of that? Really confused.