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Barracuda Backup

Physical-to-Virtual Recovery

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You can use the physical-to-virtual recovery (P2V) method to recover entire physical Microsoft Windows systems to a VMware or Hyper-V environment in the event the system has completely failed and no other recovery options are available. With P2V, all data, settings, applications, and operating system are installed to a VMware or Hyper-V system with no operating system installed.

In order to perform a P2V, all system volumes and the system state must be backed up on the data source. P2V requires that the target virtual system is configured with similar virtual hardware to the originally backed up physical system (source). P2V supports the following Microsoft Windows operating systems:

  • Windows Server 2016
  • Windows Server 2012 R2
  • Windows Server 2012
  • Windows Server 2008 R2
  • Windows Server 2008
  • Windows 10
  • Windows 8.1
  • Windows 8
  • Windows 7

Prepare the Virtual Target

Before starting the restore, you must configure the system firmware option—BIOS or Extensible Firmware Interface (EFI)—on the target virtual system to match the original physical system (source). When you select a guest operating system, BIOS or EFI is selected by default, depending on the firmware supported by the operating system. If the operating system supports BIOS and EFI, you can change the default from the Options tab of the Virtual Machine Properties editor after you create the VM and before you install the guest operating system. If you select EFI, you cannot boot an operating system that supports only BIOS, and the reverse.

When creating the target VM in VMware or Hyper-V, use the same operating system architecture and configuration as the physical target system, for example, CPU (x86 or x64), RAM, and disk configuration.

Bare Metal Restore Utility

P2V uses Barracuda’s Bare Metal Live ISO, which the target virtual system boots off of to create an environment that Barracuda Backup can restore to. Download the Bare Metal Live CD from the System > Software Downloads page. Select the appropriate version, 32-bit or 64-bit, depending on the system you are restoring. Once downloaded, the Bare Metal Live ISO file can be used to boot the target virtual machine. Once downloaded, the Bare Metal Live ISO file can be used on a bootable disk or flash drive.

The Bare Metal Live environment is based on the Windows 8.1 pre-environment (PE). Currently, Windows Server 2016 ReFS partitions using a 4K cluster size are not supported by bare metal restore because Windows 8.1 only supports a 64K cluster size.

Once the Bare Metal Live ISO is downloaded, boot the target virtual system with it, and use the following steps to perform P2V recovery of a Microsoft Windows system:

  1. The Bare Metal Restore Utility welcome/warning screen displays. Ensure that no data is present on the target system, and click Next:
  2. On the Network Configuration screen, choose a network interface, configure an IP AddressSubnet Mask, and Default Gateway:
  3. Click Next. The Awaiting connection screen displays:
  4. Log in to the Barracuda Backup local or cloud interface, and go to the Restore > Restore Browser page.
  5. Click Restore to the right of the Microsoft Windows system you want to restore. If you want to restore to a different backup revision of the system other than the latest, click on the system, and click View all revisions up to: <date>, and click Restore next to the backup revision:
  6. In the Restore dialog box, select Other Hostname or IP Address, and type the IP Address configured for the target system in the Bare Metal restore Utility. Select Destination is a VMware or Hyper-V guest:
  7. Click Start Restore.
  8. After several minutes the target system should receive the restore job from Barracuda Backup and display a list of recoverable volumes:

  9. Select the volumes you want to recover, and click Next.

    You cannot deselect boot and system volumes as these are required for the Bare Metal restore.

    If you choose to restore to a server that does not have identical volumes as the original machine the data was backed up from, the Barracuda Backup appliance will still attempt to restore all drives even though you may have only selected one of these on the Bare Metal Restore screen. The restore will throw errors for these missing drives, but will restore the drives that exist on the target machine.

  10. Select which disks on the target VM will be used in the recovery operation:

  11. Click Next, then click Yes to confirm your selection:

  12. An additional warning displays:
  13. Click Yes to proceed, and click Next to begin the system restore:

  14. When the restore is complete, click OK in the Confirmation dialog box.

  15. Remove the bare Metal Live CD, and reboot the system.

    If the server being restored was an Exchange, SQL, or Hyper-V server, the application is installed after the bare metal restore; however, the databases or guest virtual.

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