Incorrect share size shown

[BottleTop]

Hi, new to Unraid but loving it. I have an odd issue with my drives that I would appreciate any thoughts on. Hopefully I am just missing something in the problem below.

 

I have 4 drives, 2 x 12tb and 2x4tb, one of the 12tb drives is my parity drive. I have allocated the 3 remaining drives to a share to give me 20tb.

 

I copied 9.98tb from my server into 4 folders on my Unraid share. However my Unraid share is showing 11tb used. I cannot fathom where Schrodinger's 1.02tb has gone. If I look at the share from the perspective of my server it shows 9.98 but Unraid is reading out 11tb. 

 

I have compared the size of each folder to be sure and they match 9.98tb however Unraid at the share level shows 11tb.

 

I've attached images below, as I say, any thoughts would be appreciated.

 

 

 

 

 

 

Unraid 4 folders across the 3 drives equating to the assumed 9.98tb

 

Unraid share from the perspective of the other server

 

Unraid share from the perspective of Unraid (12tb drive plus the 2 remaining 3tb drives

[JonathanM]

Perhaps this?

https://www.gbmb.org/tib-to-tb

[BottleTop]

Legend @JonathanM, many thanks, I think you might be right. 

 

Edited November 21, 2022 by BottleTop