For the ESXi server to be able to see iSCSI targets/LUNs, the iSCSI adapter needs to be configured with the details of the iSCSI target server. The target server is nothing but an iSCSI array. Here, the term target can refer to the network interfaces on the iSCSI array or individual LUNs. The definition changes depending on the type of array being used. For example, a Dell EqualLogic array will present its LUNs as targets.