# zpool import
   pool: zroot
     id: 7188249789442406115
  state: UNAVAIL
 status: One or more devices are missing from the system.
 action: The pool cannot be imported. Attach the missing
        devices and try again.
   see: http://illumos.org/msg/ZFS-8000-3C
 config:

        zroot                     UNAVAIL  insufficient replicas
          mirror-0                UNAVAIL  insufficient replicas
            11829541858780836183  UNAVAIL  cannot open
            11614492944123281134  UNAVAIL  cannot open
# zpool destroy -f zroot
cannot open 'zroot': no such pool