Merge pull request #239119 from AbhishekMallick01/May-24-2023-IV

Immutable vault updates

Author: v-regandowner

articles/backup/backup-azure-immutable-vault-concept.md

@@ -4,7 +4,7 @@ description: This article explains about the concept of Immutable vault for Azur
 ms.topic: conceptual
 ms.service: backup
 ms.custom: references_regions
-ms.date: 02/17/2023
+ms.date: 05/25/2023
 author: jyothisuri
 ms.author: jsuri
 ---
@@ -47,7 +47,7 @@ Immutable vault prevents you  from performing the following operations  on the v
 | Operation type | Description |
 | --- | --- |
 | **Stop protection with delete data** | A protected item can't have its recovery points deleted before their respective expiry date. However, you can still stop protection of the instances while retaining data forever or until their expiry. |
-| **Modify backup policy to reduce retention** | Any actions that reduce the retention period in a backup policy are disallowed on Immutable vault. However, you can make policy changes that result in the increase of retention. You can also make changes to the schedule of a backup policy. |
+| **Modify backup policy to reduce retention** | Any actions that reduce the retention period in a backup policy are disallowed on Immutable vault. However, you can make policy changes that result in the increase of retention. You can also make changes to the schedule of a backup policy. <br><br>  Note that the increase in retention can't be applied if any item has its backups suspended (stop backup).  |
 | **Change backup policy to reduce retention** | Any attempt to replace a backup policy associated with a backup item with another policy with retention lower than the existing one is blocked. However, you can replace a policy with the one that has higher retention. |
 
 # [Backup vault](#tab/backup-vault)

articles/backup/backup-azure-immutable-vault-how-to-manage.md

@@ -3,7 +3,7 @@ title: How to manage Azure Backup Immutable vault operations
 description: This article explains how to manage Azure Backup Immutable vault operations.
 ms.topic: how-to
 ms.service: backup
-ms.date: 02/17/2023
+ms.date: 05/25/2023
 author: jyothisuri
 ms.author: jsuri
 ---
@@ -96,6 +96,18 @@ This time, the operation successfully passes as no recovery points can be delete
 
 :::image type="content" source="./media/backup-azure-immutable-vault/modify-policy-to-increase-retention.png" alt-text="Screenshot showing how to modify backup policy to increase backup retention.":::
 
+However, increasing the retention of backup items that are in suspended state isn't supported.
+
+Let's try to stop backup on a VM and choose **Retain as per policy** for backup data retention.
+
+:::image type="content" source="./media/backup-azure-immutable-vault/attempt-to-increase-retention-of-backup-items-in-suspended-state.png" alt-text="Screenshot shows an attempt to increase retention of backup items in suspended state.":::
+
+Now, let's go to **Modify Policy** and try to increase the retention of daily backup points to *45 days*, increasing the value by *5 days*, and save the policy.
+
+:::image type="content" source="./media/backup-azure-immutable-vault/error-on-attempt-to-increase-retention-of-backup-items-in-suspended-state.png" alt-text="Screenshot shows an error has occurred when you try to increase retention of backup items that are in suspended state.":::
+
+When you try to update the policy, the operation fails with an error and you can't modify the policy as the backup is in suspended state.
+
 ## Disable immutability
 
 You can disable immutability only for vaults that have immutability enabled, but not locked.