diff --git a/README.md b/README.md
index a302563..cb5d7cc 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@ Welcome to public repository of [https://cloud.limbosolutions.com](https://cloud
 
 Using [NextCloud](https://nextcloud.com/)
 
+- [command](#command)
+- [maintenance mode](#maintenance-mode)
+  - [scan files](#scan-files)
+  - [repair tree](#repair-tree)
+  - [delete file locks](#delete-file-locks)
 - [Setup](#setup)
   - [kubernetes Namespace](#kubernetes-namespace)
   - [Add helm chart](#add-helm-chart)
@@ -11,6 +16,34 @@ Using [NextCloud](https://nextcloud.com/)
   - [Install / Update](#install--update)
 - [backups](#backups)
 
+## command
+
+## maintenance mode
+
+``` bash
+su -s /bin/bash www-data -c "php -d memory_limit=-1 /var/www/html/occ maintenance:mode --on;"
+su -s /bin/bash www-data -c "php -d memory_limit=-1 /var/www/html/occ maintenance:mode --off"
+```
+
+### scan files
+
+``` bash
+su -s /bin/bash www-data -c "php -d memory_limit=-1 /var/www/html/occ files:scan --all"
+```
+
+### repair tree
+
+``` bash
+su -s /bin/bash www-data -c "php occ files:repair-tree"
+```
+
+### delete file locks
+
+ ``` bash
+ # execute on mariadb
+ DELETE FROM oc_file_locks WHERE 1;
+```
+
 ## Setup
 
 ### kubernetes Namespace
diff --git a/nextcloud/values.yaml b/nextcloud/values.yaml
index 93685ad..ba1f592 100644
--- a/nextcloud/values.yaml
+++ b/nextcloud/values.yaml
@@ -54,6 +54,15 @@ persistence:
 #  memory: 128Mi
 
 nextcloud:
+  extraVolumes:
+  - name: mf-documents
+    persistentVolumeClaim:
+      claimName: mf-documents-storage-limbosolutions-com
+
+  extraVolumeMounts:
+    - name: mf-documents
+      mountPath: /mf.documents
+
   configs:
     https.config.php: |-
       <?php
diff --git a/persistance-volumes.yaml b/persistance-volumes.yaml
new file mode 100644
index 0000000..b255c42
--- /dev/null
+++ b/persistance-volumes.yaml
@@ -0,0 +1,15 @@
+
+
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: mf-documents-storage-limbosolutions-com
+  namespace: cloud-limbosolutions-com
+spec:
+  storageClassName: ""
+  volumeName: mf-documents-storage-limbosolutions-com
+  accessModes:
+  - ReadWriteMany
+  resources:
+    requests:
+      storage: 64Gi