> Software > 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

Procedure

Select the Disk to Restore

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

    The Overview page appears.

  2. On the VM groups tab, in the row for the VM group that contains the disk, click the action button action_button, and then click Restore.

    The Select restore type page appears.

  3. Select Attach disk to existing VM.

    The Attach disk to existing VM page appears.

  4. To select a specific MediaAgent and/or source for the restore, in the upper-right area of the page, click the Settings button gear button.

    By default, the Commvault software automatically selects the MediaAgent and source as follows:

    • MediaAgent: The software uses the MediaAgent that performed the backup.

    • Source: By default, 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.

    For more information, see MediaAgent and Copy Precedence Considerations for Virtualization Restores.

  5. Select the disk to restore, and then 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 software performs the restore using the most suitable access node from the destination hypervisor.

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

    If you select an access node group, the Commvault 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 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 the resource group to associate the new VM with.

  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.

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

    You can specify a public, private, or marketplace image.

  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 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 restored VM:

      • Original

      • (Default) Encryption at-rest with a platform-managed key

      • Encryption at-rest with a customer-managed key

      • Double encryption with platform-managed and customer-managed keys

        • Disk encryption set: Select the relevant disk encryption set.

    2. 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.

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

  15. 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.

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

  17. Click Submit.

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