https://www.truenas.com/community/threads/create-new-pool-and-replicate-from-backup.39416/
Create new pool and replicate from backup | TrueNAS Community
I know depasseg has a similar thread https://forums.freenas.org/index.php?threads/best-method-for-upgrading-pool.38962/#post-238554 but I thought I'd ask...
create new poolreplicatebackuptruenascommunity