diff --git a/controller/instance_manager_controller.go b/controller/instance_manager_controller.go
index a899067e8e..ebddf2e41c 100644
--- a/controller/instance_manager_controller.go
+++ b/controller/instance_manager_controller.go
@@ -754,7 +754,7 @@ func (imc *InstanceManagerController) canDeleteInstanceManagerPDB(im *longhorn.I
 		hasPDBOnAnotherNode := false
 		isUnusedReplicaOnCurrentNode := false
 
-		pdbProtectedHealthyReplicas, err := imc.ds.ListVolumePDBProtectedHealthyReplicas(replica.Spec.VolumeName)
+		pdbProtectedHealthyReplicas, err := imc.ds.ListVolumePDBProtectedHealthyReplicasRO(replica.Spec.VolumeName)
 		if err != nil {
 			return false, err
 		}
diff --git a/controller/node_controller.go b/controller/node_controller.go
index c843344c3b..2a2a941b8a 100644
--- a/controller/node_controller.go
+++ b/controller/node_controller.go
@@ -1533,7 +1533,7 @@ func (nc *NodeController) shouldEvictReplica(node *longhorn.Node, kubeNode *core
 		return false, constant.EventReasonEvictionCanceled, nil
 	}
 
-	pdbProtectedHealthyReplicas, err := nc.ds.ListVolumePDBProtectedHealthyReplicas(replica.Spec.VolumeName)
+	pdbProtectedHealthyReplicas, err := nc.ds.ListVolumePDBProtectedHealthyReplicasRO(replica.Spec.VolumeName)
 	if err != nil {
 		return false, "", err
 	}
diff --git a/datastore/longhorn.go b/datastore/longhorn.go
index 8d67f1dd62..402ecb6557 100644
--- a/datastore/longhorn.go
+++ b/datastore/longhorn.go
@@ -1451,9 +1451,9 @@ func IsAvailableHealthyReplica(r *longhorn.Replica) bool {
 	return true
 }
 
-func (s *DataStore) ListVolumePDBProtectedHealthyReplicas(volumeName string) (map[string]*longhorn.Replica, error) {
+func (s *DataStore) ListVolumePDBProtectedHealthyReplicasRO(volumeName string) (map[string]*longhorn.Replica, error) {
 	pdbProtectedHealthyReplicas := map[string]*longhorn.Replica{}
-	replicas, err := s.ListVolumeReplicas(volumeName)
+	replicas, err := s.ListVolumeReplicasRO(volumeName)
 	if err != nil {
 		return nil, err
 	}