Backups for Azure
You can perform backups automatically based on the configuration for a hypervisor or VM group, or manually for a VM group or a specific VM.
The first backup of a VM is always a full backup. By default, all subsequent backups are incremental, capturing any changes to VM data since the last backup.
You can recover virtual machine data, even when the most recent backup was incremental.
Backups run based on the following options:
- Initial full backup: When you use Guided setup to set up the Virtualization solution, use the Back up now option to perform a backup for the default VM group.
- Scheduled incremental backups: The server backup plan that is assigned to a VM group includes a schedule for ongoing incremental backups. Those backups are performed automatically based on the schedule, without requiring any user action.
- Manual backups: You can perform on-demand backups for a VM group or for a specific VM.
If backups cannot start immediately, the backup jobs are queued.
Note: If a VM fails to back up during an IntelliSnap backup of a VM group, the backup job is marked as completed with errors.
What Gets Backed Up
- Disks configured by users through the Azure portal, including disks configured on Standard and Premium storage accounts
- For Azure Resource Manager deployments: Virtual machines configured with Azure unmanaged and managed disks. From these backups, you can restore full virtual machines and restore guest files and folders.
- You can backup and restore Azure managed disks that are up to 8 TB.
- CBT-enabled backups for both unmanaged and managed disks.
For more information, see Changed Block Tracking for Microsoft Azure (CBT).
- Virtual machines (VMs) with encrypted blobs. These VMs can be protected and fully recovered. However, guest file recovery of these VMs is not currently supported.
- Virtual machines encrypted using Microsoft Azure Key Vault. This includes the operating system information, the data disks information, secrets (for example, token and password information) and keys (for example, algorithm information).
Backups of virtual machines encrypted using the Key Vault secrets encryption and keys encryption management features are supported; however, backups of virtual machines encrypted using the Key Vault certificates management feature are not supported.
What Does Not Get Backed Up
- Temporary disks that are automatically configured by Azure when a virtual machine is created
- Files or network drives that are shared in Azure and mounted on a virtual machine
- Information regarding Azure Availability Zones, which are specific locations (physical) within an Azure region
- Azure Ultra SSD managed disks
Due to a Microsoft limitation, snapshots of Azure Ultra SSD managed disks are not supported. When Ultra SSD managed disks reside on a virtual machine with other supported disks, during the backup operation, the Ultra SSD managed disks are skipped. The other disks on the virtual machine are included in the backup.
Last modified: 8/10/2020 7:26:12 PM