Backing up containers

Hi,
Thanks for the info, after all the installations, I did two things:

  1. clonezilla the OS drive to another hard disk, so in case of hard disk failure I can just mount that drive
  2. I did export all the containers to an external drive (publish, export)

above should be enough for now, but was thinking, maybe what i need is only:

  1. re-install the os drive
  2. zfs import the default.img
    this might be easier