For details, see Creating an iSCSI Target.
A LUN is a portion of storage space, similar to a volume. LUNs are created from storage pool space (block-based) or from space in a thick volume (file-based).
For more information, see:
Multiple LUNs can be mapped to one target.
For details, see iSCSI LUN Actions.
The host is the service, computer, or NAS device that will access the LUN.
To prevent data corruption, multiple iSCSI initiators should not connect to the same LUN simultaneously.
The LUNs mapped to the iSCSI target appear as disks on the host.