diff --git a/scstadmin/scstadmin.sysfs/scstadmin b/scstadmin/scstadmin.sysfs/scstadmin
index 532c709bc..2ce05870f 100755
--- a/scstadmin/scstadmin.sysfs/scstadmin
+++ b/scstadmin/scstadmin.sysfs/scstadmin
@@ -1658,6 +1658,12 @@ sub checkConfiguration {
 						}
 					}
 				}
+
+				if (!defined($$tgt{'LUN'}->{'0'})) {
+					print "\t->WARNING: No LUN 0 defined for driver/target '$driver/$target'. ".
+					  "Many initiators require a LUN 0 to be defined.\n\n";
+					$warnings++;
+				}
 			}
 
 			if (defined($$tgt{'GROUP'})) {
@@ -1674,6 +1680,12 @@ sub checkConfiguration {
 								}
 							}
 						}
+
+						if (!defined($$tgt{'GROUP'}->{$group}->{'LUN'}->{'0'})) {
+							print "\t->WARNING: No LUN 0 defined for driver/target/group '$driver/$target/$group'. ".
+							  "Many initiators require a LUN 0 to be defined.\n\n";
+							$warnings++;
+						}
 					}
 				}
 			}