If you have luns mapped you certainly have igroups defined.
i typically create a single igroup for each host. ISCSI will typically have Single IQN and fiber channel will typically have two WWPNs.
If I need multiple hosts accessing the same same lun then I create an igroup that contains “child-igroups”
igroup create -igroup all_host -os vmware -protocol fcp -child host1,host2,host3
then you would be able to easily identify everything