The following support is available:
solaris-kz supports the bootpri and id properties in device resources.
Only set bootpri on disks that will be part of the root pool for the zone. If you set bootpri on disks that will not be part of the root pool for the zone, you could damage the data on the disk.
id controls the instance of the disk in the kernel zone. for example, id=5 means that the disk will be c1d5 in the zone.
The root zpool that is created on bootable solaris-kz disks can be imported into the global zone during installation,. At this time, the root zpool is visible with the zpool command. See zpool (1M) for more information.