How to delete and unmount a zfs filesystem from a Solaris Zone
Run below commands to delete filesystem (fs) from zone named zone01:
# zonecfg -z zone01
zonecfg:zone01> remove fs dir=/data01
zonecfg:zone01> remove fs dir=/data02
zonecfg:zone01> commit
zonecfg:zone01> exit
#Now destroy the zfs filesystem from the hosts:
# zfs destroy data_pool/data01/zone01
# zfs destroy data_pool/data02/zone01