antivirus compatibilty test suite docs

Author: SibonayK

articles/storage/files/storage-sync-files-planning.md

@@ -165,7 +165,7 @@ Windows Server Failover Clustering is supported by Azure File Sync for the "File
 
 ### Data Deduplication
 **Agent version 5.0.2.0**   
-Data Deduplication is supported on volumes with cloud tiering enabled on Windows Server 2016 and Windows Server 2019. Enabling deduplication on a volume with cloud tiering enabled lets you cache more files on-premises without provisioning more storage.
+Data Deduplication is supported on volumes with cloud tiering enabled on Windows Server 2016 and Windows Server 2019. Enabling deduplication on a volume with cloud tiering enabled lets you cache more files on-premises without provisioning more storage. Note that these volume savings only apply on-premises; your data in Azure Files will not be deduped. 
 
 **Windows Server 2012 R2 or older agent versions**  
 For volumes that don't have cloud tiering enabled, Azure File Sync supports Windows Server Data Deduplication being enabled on the volume.
@@ -195,10 +195,14 @@ Using sysprep on a server which has the Azure File Sync agent installed is not s
 If cloud tiering is enabled on a server endpoint, files that are tiered are skipped and not indexed by Windows Search. Non-tiered files are indexed properly.
 
 ### Antivirus solutions
-Because antivirus works by scanning files for known malicious code, an antivirus product might cause the recall of tiered files. In versions 4.0 and above of the Azure File Sync agent, tiered files have the secure Windows attribute FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS set. We recommend consulting with your software vendor to learn how to configure their solution to skip reading files with this attribute set (many do it automatically).
+Because antivirus works by scanning files for known malicious code, an antivirus product might cause the recall of tiered files. In versions 4.0 and above of the Azure File Sync agent, tiered files have the secure Windows attribute FILE_ATTRIBUTE_RECALL_ON_DATA_ACCESS set. We recommend consulting with your software vendor to learn how to configure their solution to skip reading files with this attribute set (many do it automatically). 
 
 Microsoft's in-house antivirus solutions, Windows Defender and System Center Endpoint Protection (SCEP), both automatically skip reading files that have this attribute set. We have tested them and identified one minor issue: when you add a server to an existing sync group, files smaller than 800 bytes are recalled (downloaded) on the new server. These files will remain on the new server and will not be tiered since they do not meet the tiering size requirement (>64kb).
 
+> [!Note]  
+> Antivirus vendors can check compatibility between their product and Azure File Sync using the [Azure File Sync Antivirus Compatibility Test Suite]
+(https://www.microsoft.com/download/details.aspx?id=58322), which is available for download on the Microsoft Download Center.
+
 ### Backup solutions
 Like antivirus solutions, backup solutions might cause the recall of tiered files. We recommend using a cloud backup solution to back up the Azure file share instead of an on-premises backup product.