Virtual machines hosted on VMware and running Windows Server 2016 or later do not support Granular Restore Technology (GRT) when Backup Exec server is also running Windows Server 2019

Virtual machines hosted on VMware and running Windows Server 2016 or later do not support Granular Restore Technology (GRT) when Backup Exec server is also running Windows Server 2019

Article: 100044076
Last Published: 2020-07-03
Ratings: 8 16
Product(s): Backup Exec

Problem

Backup Exec does not support Granular Restore Technology (GRT) processing of a virtual machine hosted on a VMware host under the following conditions:

  • Backup Exec server is installed on Windows Server 2019.
  • A VMware hosted virtual machine is being backed up with the GRT option enabled.
  • The virtual machine is running Windows server 2016 or later operating system.

Error Message

V-79-57344-38392 - Backup Exec installed on Windows Server 2019, does not support GRT processing for VMware virtual machines running Windows Server 2016 or later.

UMI Code: V-79-57344-38392

Cause

When trying to mount a disk of a Windows Server 2016 or later VM with REFS partition, a driver that is part of VDDK 6.7 causes Backup Exec server to blue screen and crash.

Backup Exec currently uses VDDK 6.7 to backup virtual machines hosted on VMware. To avoid the blue screen, Backup Exec does not allow GRT processing of virtual machine with Windows Server 2016 or later version of operating systems irrespective of the file systems it has.

Solution

In your environment if you have virtual machine with Window Server 2016 or later operating system and does not have REFS partitions, you can make a configuration change in the Backup Exec server, to allow GRT for such virtual machines.

To make the configuration change:

  1. Go to Start > Run > Regedit.
  2. Locate and select one of the following registry keys:
    HKEY_LOCAL_MACHINE\SOFTWARE\Symantec\Backup Exec For Windows\Backup Exec\Engine\VMware Agent          for BE20.x     or
    HKEY_LOCAL_MACHINE\SOFTWARE\Veritas\Backup Exec For Windows\Backup Exec\Engine\VMware Agent               for BE21
  3. Click Edit > New > DWORD (32-bit value).
  4. Name it as Allow Unsupported Windows VM GRT and set the value to 1.

 

UMI Code: V-79-57344-38392

 

References

Etrack : 3958909

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