Mostly, virtualization softwares will take care MAC addresses during cloning, but they may not take care the initiator name. Therefore, we should also change the initiator name.
Generate a New IQN
Assuming that the initiator name of the newly cloned VM is empty, we can get another random generated name for your new name.
[root@test2 ~]# /sbin/iscsi-iname
Modify IQN with the New One
Let's modify the initiator by the new name.
[root@test2 ~]# vi /etc/iscsi/initiatorname.iscsi
Please restart the iscsi service.
[root@test2 ~]# service iscsi restart
Now, there won't be initiator conflicts on the storage server.