Before you can use the iSCSI target service, you must enable the iSCSI license by entering the iSCSI license key and turning on the iscsi option.
system1> license add XXXXXXXXXXXXXXXXXXXXXXXXXXXX license add: successfully added license key " XXXXXXXXXXXXXXXXXXXXXXXXXXXX".
system1> options licensed_feature.iscsi.enable on Tue Sep 11 05:24:44 GMT [f3170-SAN-235-12:kern.cli.cmd:debug]: Command line input: the command is 'options'. The full command line is 'options licensed_feature.iscsi.enable on'. Run 'iscsi start' to start the iSCSI service. Also run 'lun setup' if necessary to configure LUNs.