Merge pull request #223046 from b-ahibbard/anf-snapshot-policy

snapshot policy naming conventions call-out

Author: prmerger-automator[bot]

articles/azure-netapp-files/snapshots-manage-policy.md

@@ -12,7 +12,7 @@ ms.service: azure-netapp-files
 ms.workload: storage
 ms.tgt_pltfrm: na
 ms.topic: how-to
-ms.date: 05/25/2022
+ms.date: 01/06/2023
 ms.author: anfdocs
 ---
 
@@ -78,7 +78,12 @@ You cannot apply a snapshot policy to a destination volume in cross-region repli
 
 You can modify an existing snapshot policy to change the policy state, snapshot frequency (hourly, daily, weekly, or monthly), or number of snapshots to keep.
 
-When modifying a snapshot policy, snapshots created with an old schedule will not be deleted or overwritten by the new schedule or disable the schedule. If you proceed with the update, you will have to manually delete the old snapshots.
+>[!IMPORTANT]
+>When modifying a snapshot policy, make note of the naming format. Snapshot created with policies modified before March 2022 will have a long name, for example `daily-0-min-past-1am.2022-11-03_0100`, while snapshot created with policies after March 2022 will have a shorter name, for example `daily.2022-11-29_0100`.
+>
+> If your snapshot policy is creating snapshots using the long naming convention, modifications to the snapshot policy will not be applied to existing snapshots. The snapshots created with the previous schedule will not be deleted or overwritten by the new schedule. You will have to manually delete the old snapshots.
+>
+> If your snapshot policy is creating snapshots using the short naming convention, policy modifications will be applied to the existing snapshots. 
  
 1.	From the NetApp Account view, select **Snapshot policy**.