diff --git a/production-cassandra/0-manual-config.md b/production-cassandra/0-manual-config.md
new file mode 100644
index 0000000..dd9d8ac
--- /dev/null
+++ b/production-cassandra/0-manual-config.md
@@ -0,0 +1,56 @@
+# patch of the cluster configuration in rancher
+
+## Prometheus local volumes on rancher-node-cassandra[1-3]
+```
+--- /tmp/cluster-orig.yaml	2022-07-12 11:27:27.169509573 +0200
++++ /tmp/cluster.yaml	2022-07-12 11:26:54.865395186 +0200
+@@ -58,6 +58,8 @@
+       service_node_port_range: 30000-32767
+     kube-controller: {}
+     kubelet:
++      extra_binds:
++        - '/srv/prometheus:/srv/prometheus'
+       fail_swap_on: false
+       generate_serving_certificate: false
+     kubeproxy: {}
+```
+
+# Labels
+
+```
+kubectl label node rancher-node-cassandra1 prometheus=true
+kubectl label node rancher-node-cassandra2 prometheus=true
+kubectl label node rancher-node-cassandra3 prometheus=true
+```
+
+# Prometheus operator
+In rancher application
+
+```
+--- /tmp/prometheus-orig.yaml	2022-07-12 11:54:55.115414904 +0200
++++ /tmp/prometheus.yaml	2022-07-12 11:48:22.501966971 +0200
+@@ -899,7 +899,7 @@
+     remoteWriteDashboards: false
+     replicaExternalLabelName: ''
+     replicaExternalLabelNameClear: false
+-    replicas: 1
++    replicas: 3
+     resources:
+       limits:
+         cpu: 1000m
+@@ -930,6 +930,14 @@
+         spec:
+           accessModes:
+             - ReadWriteOnce
++          resources:
++            requests:
++              storage: 30Gi
++          selector:
++            matchLabels:
++              prometheus: 'true'
++          storageClassName: local-storage
++          volumeMode: Filesystem
+     thanos: {}
+     tolerations: []
+     topologySpreadConstraints: []
+```
diff --git a/production-cassandra/pv.yaml b/production-cassandra/pv.yaml
new file mode 100644
index 0000000..effe592
--- /dev/null
+++ b/production-cassandra/pv.yaml
@@ -0,0 +1,73 @@
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: prometheus-node1
+  labels:
+    prometheus: "true"
+spec:
+  capacity:
+    storage: 35Gi
+  volumeMode: Filesystem
+  storageClassName: local-storage
+  accessModes:
+  - ReadWriteOnce # required
+  local:
+    path: "/srv/prometheus/data"
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - rancher-node-cassandra1
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: prometheus-node2
+  labels:
+    prometheus: "true"
+spec:
+  capacity:
+    storage: 35Gi
+  volumeMode: Filesystem
+  storageClassName: local-storage
+  accessModes:
+  - ReadWriteOnce # required
+  local:
+    path: "/srv/prometheus/data"
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - rancher-node-cassandra2
+---
+apiVersion: v1
+kind: PersistentVolume
+metadata:
+  name: prometheus-node3
+  labels:
+    prometheus: "true"
+spec:
+  capacity:
+    storage: 35Gi
+  volumeMode: Filesystem
+  storageClassName: local-storage
+  accessModes:
+  - ReadWriteOnce # required
+  local:
+    path: "/srv/prometheus/data"
+  nodeAffinity:
+    required:
+      nodeSelectorTerms:
+      - matchExpressions:
+        - key: kubernetes.io/hostname
+          operator: In
+          values:
+          - rancher-node-cassandra3
+
diff --git a/production-cassandra/storageclass.yaml b/production-cassandra/storageclass.yaml
new file mode 100644
index 0000000..0ecfb45
--- /dev/null
+++ b/production-cassandra/storageclass.yaml
@@ -0,0 +1,9 @@
+---
+apiVersion: storage.k8s.io/v1
+kind: StorageClass
+metadata:
+  name: local-storage
+  annotations:
+    "storageclass.kubernetes.io/is-default-class": "true"
+provisioner: kubernetes.io/no-provisioner
+volumeBindingMode: WaitForFirstConsumer