Pool size different? Overhead?

[daves_nt_here]

Just wondering if I'm missing something or is the pool size difference just a overhead thing.

Node>Disks>ZFS
shows I have 64tb


Node>Pool>Summery
shows I have 45.37tb

 

[UdoB]

That's another FAQ, definitely.

The first is the 8*8=64 TB your devices bring into the game.

You have configured a RaidZ2, so two of those are used for redundancy. This leaves 8*6=48 TB, theoretically.

From 48 down to 45.37 is not really far, is it? This difference is actual overhead and probably also the inconsistent use of TB (base 10) and TiB (base two).