Merge pull request #274805 from AbhishekMallick-MS/May-9-2024-Disk

Disk backup supportability updates

Author: prmerger-automator[bot]

articles/backup/backup-azure-dataprotection-use-rest-api-create-update-disk-policy.md

@@ -2,7 +2,7 @@
 title: Create backup policies for disks using data protection REST API
 description: In this article, you'll learn how to create and manage backup policies for disks using REST API.
 ms.topic: how-to
-ms.date: 05/10/2023
+ms.date: 05/09/2024
 ms.assetid: ecc107c0-311c-42d0-a094-654d7ee30443
 ms.service: backup
 author: AbhishekMallick-MS
@@ -119,6 +119,10 @@ The time required for completing the backup operation depends on various factors
 
 To know more details about policy creation, refer to the [Azure Disk Backup policy](backup-managed-disks.md#create-backup-policy) document.
 
+>[!Note]
+>- For Azure Disks belonging to Standard HDD, Standard SSD, and Premium SSD SKUs, you can define the backup schedule with *Hourly* frequency (of 1, 2, 4, 6, 8, or 12 hours) and *Daily* frequency. 
+>- For Azure Disks belonging to Premium V2 and Ultra Disk SKUs, you can define the backup schedule with *Hourly* frequency of only 12 hours and *Daily* frequency.
+
 ### Responses
 
 The backup policy creation/update is a synchronous operation and returns OK once the operation is successful.

articles/backup/backup-managed-disks-ps.md

@@ -2,7 +2,7 @@
 title: Back up Azure Managed Disks using Azure PowerShell
 description: Learn how to back up Azure Managed Disks using Azure PowerShell.
 ms.topic: conceptual
-ms.date: 09/17/2021 
+ms.date: 05/09/2024 
 ms.custom: devx-track-azurepowershell
 author: AbhishekMallick-MS
 ms.author: v-abhmallick
@@ -108,7 +108,9 @@ TargetDataStoreCopySetting :
 Azure Disk Backup offers multiple backups per day. If you require more frequent backups, choose the **Hourly** backup frequency with the ability to take backups with intervals of every 4, 6, 8 or 12 hours. The backups are scheduled based on the **Time** interval selected. For example, if you select **Every 4 hours**, then the backups are taken at approximately in the interval of every 4 hours so the backups are distributed equally across the day. If a once a day backup is sufficient, then choose the **Daily** backup frequency. In the daily backup frequency, you can specify the time of the day when your backups are taken. It's important to note that the time of the day indicates the backup start time and not the time when the backup completes. The time required for completing the backup operation is dependent on various factors including size of the disk, and churn rate between consecutive backups. However, Azure Disk backup is an agentless backup that uses [incremental snapshots](../virtual-machines/disks-incremental-snapshots.md), which doesn't impact the production application performance.
 
    >[!NOTE]
-   > Although the selected vault may have the global-redundancy setting, currently Azure Disk Backup supports snapshot datastore only. All backups are stored in a resource group in your subscription and aren't copied to backup vault storage.
+   >- Although the selected vault may have the global-redundancy setting, currently Azure Disk Backup supports snapshot datastore only. All backups are stored in a resource group in your subscription and aren't copied to backup vault storage.
+   >- For Azure Disks belonging to Standard HDD, Standard SSD, and Premium SSD SKUs, you can define the backup schedule with *Hourly* frequency (of 1, 2, 4, 6, 8, or 12 hours) and *Daily* frequency. 
+   >- For Azure Disks belonging to Premium V2 and Ultra Disk SKUs, you can define the backup schedule with *Hourly* frequency of only 12 hours and *Daily* frequency.
 
 To know more details about policy creation, refer to the [Azure Disk Backup policy](backup-managed-disks.md#create-backup-policy) document.
 

articles/backup/backup-managed-disks.md

@@ -2,7 +2,7 @@
 title: Back up Azure Managed Disks
 description: Learn how to back up Azure Managed Disks from the Azure portal.
 ms.topic: conceptual
-ms.date: 11/03/2022
+ms.date: 05/09/2024
 ms.service: backup
 author: AbhishekMallick-MS
 ms.author: v-abhmallick
@@ -77,6 +77,10 @@ A Backup vault is a storage entity in Azure that holds backup data for various n
 
 1. Complete the backup policy creation by selecting **Review + create**.
 
+>[!Note]
+>- For Azure Disks belonging to Standard HDD, Standard SSD, and Premium SSD SKUs, you can define the backup schedule with *Hourly* frequency (of 1, 2, 4, 6, 8, or 12 hours) and *Daily* frequency. 
+>- For Azure Disks belonging to Premium V2 and Ultra Disk SKUs, you can define the backup schedule with *Hourly* frequency of only 12 hours and *Daily* frequency.
+
 ## Configure backup
 
 - Azure Disk backup supports only the operational tier backup. Copying of backups to the vault storage tier is currently not supported. The Backup vault storage redundancy setting (LRS/GRS) doesn’t apply to the backups stored in the operational tier.              <br>         Incremental snapshots are stored in a Standard HDD storage, irrespective of the selected storage type of the parent disk. For additional reliability, incremental snapshots are stored on [Zone Redundant Storage](../storage/common/storage-redundancy.md) (ZRS) by default in ZRS supported regions.

articles/backup/disk-backup-overview.md

@@ -2,7 +2,7 @@
 title: Overview of Azure Disk Backup
 description: Learn about the Azure Disk backup solution.
 ms.topic: conceptual
-ms.date: 08/17/2023
+ms.date: 05/09/2024
 ms.service: backup
 author: AbhishekMallick-MS
 ms.author: v-abhmallick
@@ -74,6 +74,10 @@ The retention period for a backup also follows the maximum limit of 450 snapshot
 
 For example, if the scheduling frequency for backups is set as Daily, then you can set the retention period for backups at a maximum value of 450 days. Similarly, if the scheduling frequency for backups is set as Hourly with a 1-hour frequency, then you can set the retention for backups at a maximum value of 18 days. 
 
+>[!Note]
+>- For Azure Disks belonging to Standard HDD, Standard SSD, and Premium SSD SKUs, you can define the backup schedule with *Hourly* frequency (of 1, 2, 4, 6, 8, or 12 hours) and *Daily* frequency. 
+>- For Azure Disks belonging to Premium V2 and Ultra Disk SKUs, you can define the backup schedule with *Hourly* frequency of only 12 hours and *Daily* frequency.
+
 ## Why do I see more snapshots than my retention policy?
 
 If a retention policy is set as *1*, you can find two snapshots. This configuration ensures that at least one latest recovery point is always present in the vault, if all subsequent backups fail due to any issue. This causes the presence of two snapshots.

articles/backup/disk-backup-support-matrix.md

@@ -2,7 +2,7 @@
 title: Azure Disk Backup support matrix
 description: Provides a summary of support settings and limitations Azure Disk Backup.
 ms.topic: conceptual
-ms.date: 03/18/2024
+ms.date: 05/09/2024
 ms.custom: references_regions, engagement-fy24
 ms.service: backup
 author: AbhishekMallick-MS
@@ -19,7 +19,11 @@ Azure Disk Backup is available in all public cloud and Sovereign cloud regions.
 
 ## Limitations
 
-- Azure Disk Backup is supported for Azure Managed Disks, including shared disks (Shared premium SSDs). Unmanaged disks aren't supported. Currently, this solution doesn't support Premium SSD v2 disks and Ultra-disks, including shared disk, because of lack of snapshot capability.
+- Azure Disk Backup is supported for Azure Managed Disks (Standard HDD, Standard SSD and Premium SSD, Premium SSD v2 disks, and Ultra-disks), including shared disks (Shared premium SSDs). Unmanaged disks aren't supported. 
+
+  >[!Note]
+  >- For Azure Disks belonging to Standard HDD, Standard SSD, and Premium SSD SKUs, you can define the backup schedule with *Hourly* frequency (of 1, 2, 4, 6, 8, or 12 hours) and *Daily* frequency. 
+  >- For Azure Disks belonging to Premium V2 and Ultra Disk SKUs, you can define the backup schedule with *Hourly* frequency of only 12 hours and *Daily* frequency.
 
 - Azure Disk Backup supports backup of Write Accelerator disk. However, during restore the disk would be restored as a normal disk. Write Accelerated cache can be enabled on the disk after mounting it to a VM.