Strange disk usage / capacity behaviour in storage pools

[doma_2345]

Hi All

 

I wonder if someone could answer this

 

I have a seperate pool set up  /mnt/systempool

 

The disk usage says the following

 

 

These are two 1tb ssd's in a raid 1 configuration

 

These are the system folders on this pool

 

 

I thought it was strange the amount of spare capacity i had on this pool and when investigating found the following

 

 

Why is the gui showing one thing and cli showing another?

Edited November 30, 2021 by doma_2345
fix typos

[JorgeB]

du isn't reliable with btrfs, GUI will show the correct stats for that pool, same as the btrfs command:

 

btrfs fi usage -T /mnt/systempool

 

[doma_2345]

 

Well thats a different number again

34 minutes ago, JorgeB said:

du isn't reliable with btrfs, GUI will show the correct stats for that pool, same as the btrfs command:

 

btrfs fi usage -T /mnt/systempool

 

 

[doma_2345]

actually i think i might have been reading it wrong,

 

trying to work out the switch for file depth

[JorgeB]

13 minutes ago, doma_2345 said:

Well thats a different number again

It doesn't you just need to adjust the units, GUI is in TB, not TiB

 

Used=1.13TiB=1.24TB/2=620GB

Free=348.5GiB=370GB

[doma_2345]

from looking into this du should be reporting a larger amount than btrfs reports not a smaller amount.

[JorgeB]

Like mentioned du output is meaningless with btrfs, it can be show more, it can show less.