diff --git a/kubernetes/thin/apps/openebs/app/helm-release.yaml b/kubernetes/thin/apps/openebs/app/helm-release.yaml
index 648c9e3..b3b30b5 100644
--- a/kubernetes/thin/apps/openebs/app/helm-release.yaml
+++ b/kubernetes/thin/apps/openebs/app/helm-release.yaml
@@ -51,6 +51,8 @@ spec:
         enabled: false
       storageClass:
         nameSuffix: single
+        reclaimPolicy: Retain
+        allowVolumeExpansion: true
       tolerations:
         # tolerate control plane
         - key: "node-role.kubernetes.io/control-plane"
diff --git a/kubernetes/thin/apps/openebs/storage-class/dual-replica-sc.yaml b/kubernetes/thin/apps/openebs/storage-class/dual-replica-sc.yaml
index 62dea56..76b5d6c 100644
--- a/kubernetes/thin/apps/openebs/storage-class/dual-replica-sc.yaml
+++ b/kubernetes/thin/apps/openebs/storage-class/dual-replica-sc.yaml
@@ -5,4 +5,6 @@ metadata:
 parameters:
   protocol: nvmf
   repl: "2"
+reclaimPolicy: Retain
+allowVolumeExpansion: true
 provisioner: io.openebs.csi-mayastor
\ No newline at end of file