Re: [List] Cannot find out what uses space in ZFS dataset

From: David Christensen <dpchrist_at_holgerdanske.com>
Date: Fri, 19 Sep 2025 01:14:09 UTC
On 9/18/25 17:53, David Christensen wrote:
>  > I tried deleting the 20250711020000 snapshot.
>  > <snip>
>  > Still "zfs send" generates the same huge amount of data.
> 
> 
> Please post the console session.  My guess is that you destroyed the 
> snapshot in the dataset "zroot/ROOT/default", but that you did not 
> destroy the snapshots in the child datasets.


That guess is wrong -- zroot/ROOT/default should not have child datasets:

https://wiki.freebsd.org/RootOnZFS/GPTZFSBoot#Create_the_ZFS_file_system_hierarchy


The console sessions for `zfs destroy ...` and `zfs send ...` should 
provide the needed facts.


David