As zpool list always given the wrong free space ?

[peter247]

Just notice that my 4TB , 3 + 1 , which should be about 15TB total, but 11.5TB usable .
So with 4.91TB used I have 9.4TB free .
Mirrors look to be correct but not my raidz1-0
root@pve1:~# zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
SSD_Backup 3.62T 3.45T 181G - - 0% 95% 1.00x ONLINE -
master_pool 14.5T 4.91T 9.64T - - 0% 33% 1.00x ONLINE -
root@pve1:~#
as this always been the same or as it changed recently ?

 

[LnxBil]

as this always been the same or as it changed recently ?

Yes, has been always the case. This is a common misconception about ZFS. zpool shows ALL space including the reduncancies für any RAIDz level, only mirroring will show the netto space.

 

[peter247]

Yes, has been always the case. This is a common misconception about ZFS. zpool shows ALL space including the reduncancies für any RAIDz level, only mirroring will show the netto space.

So it is not a bug or fault it is what Microsoft would call a feature.

 

[LnxBil]

So it is not a bug or fault it is what Microsoft would call a feature.

Let's call it a philosophy ...