diff --git a/clusters/cl01tl/monitoring/kube-prometheus-stack/templates/persistent-volume-claim.yaml b/clusters/cl01tl/monitoring/kube-prometheus-stack/templates/persistent-volume-claim.yaml
deleted file mode 100644
index 809677fd4..000000000
--- a/clusters/cl01tl/monitoring/kube-prometheus-stack/templates/persistent-volume-claim.yaml
+++ /dev/null
@@ -1,18 +0,0 @@
-apiVersion: v1
-kind: PersistentVolumeClaim
-metadata:
-  name: kube-prometheus-stack-iscsi-storage
-  namespace: {{ .Release.Namespace }}
-  labels:
-    app.kubernetes.io/name: kube-prometheus-stack-iscsi-storage
-    app.kubernetes.io/instance: {{ .Release.Name }}
-    app.kubernetes.io/version: {{ .Chart.AppVersion }}
-    app.kubernetes.io/component: storage
-    app.kubernetes.io/part-of: {{ .Release.Name }}
-spec:
-  storageClassName: synology-iscsi-delete
-  accessModes:
-    - ReadWriteOnce
-  resources:
-    requests:
-      storage: 200Gi
diff --git a/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml b/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
index 428a24520..bc20108d3 100644
--- a/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
+++ b/clusters/cl01tl/monitoring/kube-prometheus-stack/values.yaml
@@ -152,10 +152,3 @@ kube-prometheus-stack:
             resources:
               requests:
                 storage: 200Gi
-      volumes:
-        - name: migration
-          persistentVolumeClaim:
-            claimName: kube-prometheus-stack-iscsi-storage
-      volumeMounts:
-        - name: migration
-          mountPath: /migration