> Commvault Cloud > Virtualization > Azure > Restores

Attaching a Disk to an Azure VM

You can perform a restore operation that attaches a disk to an existing Azure VM or a new VM.

Prerequisites

If a passkey is configured for restores, you must have the passkey.

Limitations

  • You cannot perform attach disk restores for the following cases:

    • From backups of unmanaged VM disks

    • From backups of encrypted VM disks

    • For Azure Classic, to multiple destination VMs that are part of the same Cloud Service group

  • Live browse and restore is not supported for the following:

    • VMs that are encrypted with either volume or disk encryption

    • OS disks of confidential VMs

Procedure

Select the Disk to Restore

  1. From the Command Center navigation pane, go to Protect > Virtualization.

    The Overview page appears.

  2. On the Virtual machines tab, click the VM that contains the disk.

    The VM properties page appears.

  3. In the Recovery points area, select a recovery point.

  4. Click Restore.

    The Select restore type page appears.

  5. Click Attach disk to VM.

    The Attach disk to VM page appears.

  6. To select a specific Backup Gateway and/or source for the restore, in the upper-right area of the page, click the Change source button.

    The Change source dialog box appears.

    • Restore from copy: With the default value of Automatic, the software searches for the requested data in the primary copy. If the data is not found in the primary copy, the software selects a secondary or auxiliary copy.

    • MediaAgent: With the default value of Automatic, software attempts to use the MediaAgent that performed the backup.

  7. Select the disk to restore.

  8. Click Restore.

    The Restore options dialog box appears.

Select the Hypervisor and VM to Restore the Disk To (Admin Users Only)

The following steps are performed on the Other hypervisor tab, which appears only for admin users—not for end users.

  1. For Destination hypervisor, select the hypervisor to restore the disk to.

  2. For Access node, leave Automatic (the default value) selected, or select an access node or an access node group.

    If you select Automatic, the Commvault Cloud software performs the restore using the most suitable access node from the destination hypervisor.

    If you select an access node group, the Commvault Cloud software performs the restore operation using the most suitable access node that is available in the access node group.

    For access node selection, the Commvault Cloud software checks for the same region. If no region match is found, then any of the available access nodes from the selected destination hypervisor or access node group is used.

  3. For Destination VM, select the VM to restore the disk to.

  4. For Disk name, you can enter a different name for the restored disk.

    If you do not enter a new disk name, a unique disk name is created automatically including a time stamp.

  5. For Storage Account, select the storage account to restore the disk to.

Select the VM to Restore the Disk To

The following steps are performed on the My virtual machine tab, which appears for both admin users and end users.

  1. For Select destination VM, select the VM to attach the disk to.

    Only VMs that you have permissions for are available to select.

  2. For Disk name, you can enter a different name for the restored disk.

    If you do not enter a new disk name, a unique disk name is created automatically including a time stamp.

  3. Click Submit to start the restore job.

Create a New VM

Instead of attaching a disk to an existing VM, you can create a new VM to attach the disk to. The OS disk and data disks of the original VM are attached to the new VM as data disks.

The following steps are performed on the New virtual machine tab, which appears for both admin users and end users.

  1. For Restore as, leave Azure Resource Manager selected.

  2. For Destination, select the hypervisor to associate the new VM with.

  3. For Access node, leave Automatic (the default value) selected, or select an access node or an access node group.

    If you select Automatic, the Commvault Cloud software performs the restore using the most suitable access node from the destination hypervisor.

    If you select an access node group, the Commvault Cloud software performs the restore operation using the most suitable access node that is available in the access node group.

    For access node selection, the Commvault Cloud software checks for the same region. If no region match is found, then any of the available access nodes from the selected destination hypervisor or access node group is used.

  4. For VM display name, enter a descriptive name for the new VM.

  5. For Resource group, select a resource group for the new VM.

  6. For Region, select the region to create the VM in.

  7. For Storage account, select the storage account to create the VM in.

  8. For Availability zone, leave Auto selected or select the availability zone to create the VM in.

    This setting applies only to Azure managed disks. The zones listed apply only to the region that you select for the restored VM.

    If you leave Auto selected, and if the feature is supported for the specified region and VM size, the VM is restored to the same availability zone as the source VM. Otherwise, it is restored without a zone (None).

  9. For Image option, select the image to create the new VM from.

    To browse the images based on their visibility type, do the following:

    1. Click the browse button.

      The Image option dialog box appears.

    2. From Visibility type, select Marketplace, Private, Compute Galleries, or Shared Galleries.

    3. Select a gallery.

    4. Select an image.

    5. Click Save.

  10. For VM size, select the size for the new VM.

  11. For Administrator account, enter credentials for the new VM.

  12. For Network settings, leave Auto Selected selected for the network and subnet, or modify the settings.

    To modify the settings, do the following:

    1. Click the action button action_button, and then select Edit.

      The Edit network settings dialog box appears.

    2. For Virtual network/subnet, select the network and subnet for the new VM.

    3. For Create/assign public IP, to specify a public IP address, move this toggle key to the right, and then select either Dynamic or Static. If you select Static, enter the IP address.

    4. For Preferred private IP type, select either Dynamic or Static. If you select Static, enter the IP address.

    5. Click Submit.

  13. To modify the disk name, storage type, or storage account, do the following:

    1. Select the disk.

    2. Click Edit.

      The Modify options for disk dialog box appears.

    3. For Disk name, enter a descriptive name for the disk.

    4. For Storage type, to manage storage and costs, you can select the disk type for the Azure destination VM.

      This setting applies only to Azure managed disks.

      The Original option uses the same storage type as the source VM.

    5. For Storage account, select the Azure Standard or Premium general-purpose storage account for the restored VM.

      You can select a different storage account for each VM and disk.

      Only locally-redundant storage (LRS) and StorageV2 (general purpose v2) accounts that are associated with the selected region for the restored VM are listed.

    6. Click Save.

  14. To specify disk encryption type and/or VM tags, move the Advanced options toggle key to the right, and then do the following:

    1. For Disk encryption type, select the type of encryption for the new VM.

    2. For For Disk encryption set, you can select a disk encryption set (DES).

      If you select a DES, verify the following:

      • The DES and the Azure Key Vault that manages the encryption keys for the DES are available in the region you want restore the VM to.

      • If you use a custom role to give Commvault Cloud access to your Azure resources, the role has the Microsoft.Compute/diskEncryptionSets/read resource type. All the custom roles that Commvault provides include this resource type.

        Note

        • Commvault Cloud runs the restore job even if your custom role doesn't have the Microsoft.Compute/diskEncryptionSets/read resource type.

        • If you restore a DES-encrypted VM from a snap, the VM is restored with the same DES as the source VM.

    3. For VM tags, you can add, modify, or delete tags for the restored VM.

      If the source VM has tags, those tags are displayed in the VM tags area, and you can modify or delete those tags.

      You can add tags by typing them or by browsing to select the tags.

  15. If you don't want to attach the OS disk to the new VM (as a data disk), select Skip attaching OS disk.

  16. To automatically start the VM after the restore is complete, select Power on VMs after restore.

    • During the restore, the VM is briefly powered on, regardless of the value of this setting. This brief powering on of the VM is a necessary part of the restore process and cannot be changed.

    • The power state of the VM does not affect subsequent backups.

  17. To delete an existing VM, and then replace it with the restored VM, select Unconditionally overwrite if it already exists.

  18. Click Submit.

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