Once you have finished installing ZFS on Ubuntu 20.04, the next step is to do some configuration with your hard disks. There are a lot of possibilities with ZFS, and what you decide to do will depend on how many drives you have available and what your storage goals are. For example, would you rather your storage array focus on speed or redundancy? Do you have 3 disks or 20? What about encryption?
This is a companion discussion topic for the original entry at https://linuxconfig.org/configuring-zfs-on-ubuntu-20-04