You can discover iSCSI target portals by using the send targets method.
The iscsiadm command returns the IQN and target portals that are associated with the system node.
iscsiadm --mode discovery --type sendtargets --portal x.x.x.x
Where x.x.x.x is the IP address of a node Ethernet port on the system.
Command output similar to the following example is displayed:
x.x.x.x:3260, 1 iqn.1986-03.com.ibm:2145.china5.hlnc111874