Could not delete Dataset in WebUI / zfs destroy aslo tricky

Greetings,

Wondering what I did wrong here.

I set up a single disk as a potential bkup candidate. I created a replication to the dataset “bkups” via Replication Tasks. Replication worked fine. Wanted to delete the entire VDEV and start over again.

When I tried to delete the dataset in WebUI it said that there was no storage remaining so it wouldn’t delete.

I went to command line and typed:

zfs destroy mnt/bkups

reponse: does not exist

so I cd’d to mnt

sudo zfs destroy -r bkups (←- this sucessfully removed bkups)

then had to

sudo zpool destroy bkups (←- this successfully removed the pool)

VDEV had to be removed from UI

Any “right way” to process deletion of a datset and VDEV from the WebUI?