Update azure-netapp-files-faqs.md

Author: b-hchen

articles/azure-netapp-files/azure-netapp-files-faqs.md

@@ -13,7 +13,7 @@ ms.workload: storage
 ms.tgt_pltfrm: na
 ms.devlang: na
 ms.topic: conceptual
-ms.date: 10/12/2019
+ms.date: 11/26/2019
 ms.author: b-juche
 ---
 # FAQs About Azure NetApp Files
@@ -138,6 +138,10 @@ If you are using Azure NetApp Files with Azure Active Directory Domain Services,
 
 Azure NetApp Files supports Windows Server 2008r2SP1-2019 versions of Active Directory Domain Services.
 
+### Why does the available space on my SMB client not show the provisioned size?
+
+The volume size reported by the SMB client is the maximum size the Azure NetApp Files volume can grow to. The size of the Azure NetApp Files volume as shown on the SMB client is not reflective of the quota or size of the volume. You can get the Azure NetApp Files volume size or quota through the Azure portal or the API.
+
 ## Capacity management FAQs
 
 ### How do I monitor usage for capacity pool and volume of Azure NetApp Files?