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

From: Andrea Venturoli <ml_at_netfence.it>
Date: Sun, 21 Sep 2025 17:07:22 UTC
On 9/19/25 15:28, freebsd@vanderzwan.org wrote:

> Maybe procstat -af and look for a regular file with a huge value in OFFSET column. That assumes the file offset is at EOF for that huge file.

Didn't help.

I finally had the chance to reboot, but not even this solved!!! :(

I still get the same figures:
> # du -d 0 -h -x
> 3.3G    .
> # zdb -ddd zroot/ROOT/default 0:-1:A |sort -h -b -k 5 |tail
>     186544    2   128K   128K  31.3M     512  57.5M  100.00  ZFS plain file
>       5738    2   128K   128K  33.2M     512  51.9M  100.00  ZFS plain file
>          0    6   128K    16K  39.5M     512   176M   29.37  DMU dnode
>     186545    2   128K   128K  48.4M     512  93.5M   99.60  ZFS plain file
>     186426    2   128K   128K  53.1M     512   101M  100.00  ZFS plain file
>     186668    3   128K   128K  76.2M     512   178M  100.00  ZFS plain file
>     186209    3   128K   128K  91.9M     512   253M  100.00  ZFS plain file
>     186671    3   128K   128K   135M     512   327M  100.00  ZFS plain file
>     186427    3   128K   128K   140M     512   334M  100.00  ZFS plain file
>        360    3   128K   128K  58.8G     512  90.0G  100.00  ZFS plain file


  bye & Thanks
	av.