How to expand dataset

on pve,I have a 10T make it to dataset
then resize to 20T ,truenas detect it
but how to expand all space to dataset

You should not be creating virtual disks. You should be passing a controller through so TrueNAS has management of the disks.

See here:

1 Like

I read the reply carefully.
If I use cloud computing
how should I solve the above problem?
(Translated from google,ths)

You cant. But you could try another NAS software that doesnt use ZFS.

Managing Pools | TrueNAS Documentation Hub

(Found the answer. Sorry to bother you guys.)