Post-Restore from ZFS Snapshot onto new pool, incorrect size reported

[ndboost]

I am running FreeNAS 9.2.0-RELEASE.

I originally had a 4x - 2TB Z1 configuration. Which would give me ~5.5TB of useable space.

I initially tried to add a 5th disk, and it added it as a striped vdev to the pool, this is bad. So i took a snapshot of the root volume /vault (With recursive on).

I then sent that snapshot to another array of disks on the machine temporarily (completely separate pool). This pool is called "back", you can see it in the top screenshot..

I then rebuilt the "Vault" pool with 5x - 2TB Z1 configuration. Once that was done, I restored the snapshot back onto this vault to give me all my data and vol's back. That all worked fine and dandy.

I stumbled across a strange inconsistency though. Doing the math, I should expect the following sizing:

• 4x - 2TB Z1 = ~5.5TB of space usable
• 5x - 2TB Z1 = ~7.3TB of space usable

FreeNAS GUI is still showing my 5x array as only having 5.5TB of space usable (Size Column), and i think command line is showing the right numbers.

With this being noticed i have three questions

1. Why is this happening
2. How can I fix it
3. Why doesn't FreeNAS Web GUI show Space Used as a sum of all of its sub volumes?

 

[cyberjock]

https://bugs.freenas.org/issues/4419

 

[ndboost]

https://bugs.freenas.org/issues/4419

Thanks for the quick response Cyberjock, delivering.. as always :)

That bug looks to be the culprit, i'll watch the issue thread and keep my fingers crossed.

Thanks again