Truenas Newbie question

[homeserver78]

See
https://openzfs.github.io/openzfs-docs/man/master/8/zpool-remove.8.html

and

Removing Vdev

and

[SOLVED] How to remove vdev from zpool?

Looks like a simple zpool remove tank mirror-X worked fine! Wow, I worried about this for nothing . root@nas[~]# zpool remove AllStore mirror-10 root@nas[~]# zpool status AllStore pool: AllStore state: ONLINE remove: Evacuation of mirror in progress since Tue Dec 15 21:40:17 2022 54.9G copied out of 426G at 233M/s, 12.89% done, …

and … (search for ‘zfs remove vdev from pool’ to find more on the topic).