diff --git a/docs/csi-debug.md b/docs/csi-debug.md
index 3c68d808..b44f2267 100644
--- a/docs/csi-debug.md
+++ b/docs/csi-debug.md
@@ -27,6 +27,11 @@ csi-nfs-node-dr4s4                        3/3     Running   0          7m4s    1
  - get csi driver logs
 ```console
 $ kubectl logs csi-nfs-node-cvgbs -c nfs -n kube-system > csi-nfs-node.log
+```
+
+ - check nfs mount inside driver
+```console
+kubectl exec -it csi-nfs-node-cvgbss -n kube-system -c nfs -- mount | grep nfs
 ```
 
 ### troubleshooting connection failure on agent node