SOLVED raidz2 seemingly doesn't have 2 disks of redundancy?

[tubaguy]

I have a raidz2 that I've had to replace a couple disks on. It consists of 8 6TB drives.

That stuff all looks okay to me, but under the storage tab it shows that I'm using 29.2 TB and 14.3 TB free (43.5 TB total). FreeNAS says that a 6 TB drive yields about 5.46 TB. At 8 drives that would yield 43.68 TB, pretty similar to 43.5 TB.

Do I actually not have any redundancy here? I have 2 extra 6TB drives I could add to this array for redundancy if that's possible.

Let me know if more info would be helpful!

 

[MrToddsFriends]

That stuff all looks okay to me, but under the storage tab it shows that I'm using 29.2 TB and 14.3 TB free (43.5 TB total).

Confused by the Used and Available entries of the pool on the one hand and of the root dataset on the other?
http://doc.freenas.org/11/storage.html#view-volumes

 

[Bidule0hm]

The first line is the pool and is showing the total size (including parity, etc...) while the second line is the root dataset (created by FreeNAS) with the same name as the pool and is showing the usable size (without parity, etc...). And the numbers are in TiB with 1 TB = 0.909 TiB ;)

 

[tubaguy]

Ah, okay! Thank you much!