diff --git a/templates/Grafana-Grafana.yaml b/templates/Grafana-Grafana.yaml
index 2a59f6c..257a3d2 100644
--- a/templates/Grafana-Grafana.yaml
+++ b/templates/Grafana-Grafana.yaml
@@ -143,7 +143,7 @@ spec:
         app.kubernetes.io/part-of: {{ $.Chart.Name }}
     spec:
       accessModes:
-        - "ReadWriteMany"
+        - {{ .Values.nfc_monitoring.grafana.storage_accessModes | default "ReadWriteOnce" }}
       resources:
         requests:
           storage: "5Gi"
diff --git a/values.yaml b/values.yaml
index 5b4c1db..6cbe580 100644
--- a/values.yaml
+++ b/values.yaml
@@ -60,6 +60,8 @@ nfc_monitoring:
 
     replicas: 1
 
+    # storage_accessModes: ReadWriteMany
+
     affinity: 
       nodeAffinity:
         preferredDuringSchedulingIgnoredDuringExecution: