Merge pull request #179121 from andyzhangx/patch-30

Update azure-files-csi.md

Author: PRMerger18

articles/aks/azure-files-csi.md

@@ -3,7 +3,7 @@ title: Use Container Storage Interface (CSI) drivers for Azure Files on Azure Ku
 description: Learn how to use the Container Storage Interface (CSI) drivers for Azure Files in an Azure Kubernetes Service (AKS) cluster.
 services: container-service
 ms.topic: article
-ms.date: 08/27/2020
+ms.date: 11/09/2021
 author: palma21
 
 ---
@@ -254,7 +254,10 @@ kubectl apply -f private-pvc.yaml
 
 [Azure Files supports the NFS v4.1 protocol](../storage/files/storage-files-how-to-create-nfs-shares.md). NFS 4.1 support for Azure Files provides you with a fully managed NFS file system as a service built on a highly available and highly durable distributed resilient storage platform.
 
- This option is optimized for random access workloads with in-place data updates and provides full POSIX file system support. This section shows you how to use NFS shares with the Azure File CSI driver on an AKS cluster.
+This option is optimized for random access workloads with in-place data updates and provides full POSIX file system support. This section shows you how to use NFS shares with the Azure File CSI driver on an AKS cluster.
+
+> [!NOTE]
+> Make sure cluster `Control plane` identity(with name `AKS Cluster Name`) has `Contributor` permission on vnet resource group.
 
 ### Create NFS file share storage class