Thanks all for the reply.. I need to rebuild the my Zpool (Tank), so i need to copy it into another zpool..
i've created a new zpool named backup
i've create new snapshot of entire dataset with recursive option activated activated
now > replication task > destination ok, replicate child ok, localhost ok.. ssh key ok.. task is up to date...
teorically i have the snapshot in /mnt/backup/ (the 2 zpool ) it's right?
and now??

