Merge pull request #113395 from b-juche/patch-28

Add req. for at least one export policy

Author: PRMerger16

articles/azure-netapp-files/azure-netapp-files-mount-unmount-volumes-for-virtual-machines.md

@@ -6,12 +6,15 @@ ms.author: b-juche
 ms.service: azure-netapp-files
 ms.workload: storage
 ms.topic: conceptual
-ms.date: 04/22/2020
+ms.date: 04/30/2020
 ---
 # Mount or unmount a volume for Windows or Linux virtual machines 
 
 You can mount or unmount a volume for Windows or Linux virtual machines as necessary.  The mount instructions for Linux virtual machines are available on Azure NetApp Files.  
 
+> [!IMPORTANT] 
+> You must have at least one export policy to be able to access an NFS volume.
+
 1. Click the **Volumes** blade, and then select the volume for which you want to mount. 
 2. Click **Mount instructions** from the selected volume, and then follow the instructions to mount the volume.