Az Files backup supportability updates

Author: AbhishekMallick-MS

articles/backup/azure-file-share-support-matrix.md

@@ -2,7 +2,7 @@
 title: Support Matrix for Azure file share backup by using Azure Backup
 description: Provides a summary of support settings and limitations when backing up Azure file shares.
 ms.topic: conceptual
-ms.date: 03/29/2024
+ms.date: 08/16/2024
 ms.custom: references_regions, engagement-fy24
 ms.service: azure-backup
 author: AbhishekMallick-MS
@@ -188,6 +188,22 @@ Vaulted backup for Azure Files (preview) is available in West Central US, Southe
 
 ---
 
+## Daylight savings
+
+Azure Backup doesn't support automatic clock adjustment for daylight saving time for Azure VM backups. It doesn't shift the hour of the backup forward or backwards. To ensure the backup runs at the desired time, modify the backup policies manually as required.
+
+## Support for customer-managed failover
+
+This section describes how your backups and restores are affected after customer-managed failovers. 
+
+The following table lists the behavior of backups due to customer-initiated failovers:
+
+| Failover type | Backups | Restore | Enabling protection (re-protection) of failed over account in secondary region |
+| --- | --- | --- | --- |
+| Customer-managed planned failover | Supported | Supported | Not supported |
+| Customer-managed unplanned failover | Not supported | Only cross-region restore from the vault is supported. | Not supported |
+
+
 ## Next steps
 
 * Learn how to [Back up Azure file shares](backup-afs.md)