Hi,
I found this information from Netbackup Support for NetBackup 7.x and 8.x in virtual environments. Have you opportunity to check this? See attached.
Hyper-V online backups with VSS require the proper version of Hyper-V integration services in the VM
To allow online backups of Hyper-V virtual machines using the VSS backup method, the proper version of the Hyper-V integration services must be installed in the virtual machines. Without the proper version, online backup may not succeed (NetBackup status 4201). The following may appear in the job's detailed status log:
2/17/2014 1:39:17 PM - Critical bpbrm(pid=7492) from client RHEL_60_GPT:FTL - snapshot processing failed, status 4201
2/17/2014 1:39:17 PM - Critical bpbrm(pid=7492) from client RHEL_60_GPT: FTL - snapshot creation failed, status 4201
Note: The WMI backup method (for Hyper-V Server 2016 and later) does not employ
online vs. offline backups.
For more information on the WMI method, see the
NetBackup for Hyper-V Administrator’s Guide for 8.0, available here:
http://www.veritas.com/docs/000003214
Guest OS Notes and requirements on the integration services in the VM Required minimum versions of integration services:
■ Hyper-V server 2016: Integration services are automatically updated.
■ Hyper-V server 2012 R2: Integration services 6.3.9600.16384.
■ Hyper-V server 2012: The integration services are built in to the Windows 2012 guest OS.
For other guest operating systems, see "Software requirements (for supported guest operating
systems)" in the following Microsoft TechNet article: http://technet.microsoft.com/library/hh831531
■ Hyper-V server 2008 R2: Integration services 6.1.7600.16385
■ Hyper-V server 2008: Integration services 6.0.6001.18016.
To upgrade the integration services, see the TechNet article "Install Hyper-V and create a virtual machine:"
http://technet.microsoft.com/en-US/library/hh846766
Regards,
Thiago