Have a look at this
DOCUMENTATION: Support for NetBackup 7.x in virtual environments (updated February 20, 2013).
http://www.symantec.com/docs/TECH127089
and this
NetBackup 7.x Operating System Compatibility List
http://www.symantec.com/docs/TECH76648
This Statement of Support for NetBackup in a Virtual Environment document describes the extent of support for NetBackup within a virtual environment. Ideally, every NetBackup configuration supported in a traditional physical environment would also be supported in any virtual environment without qualification. While that is our mission, it is not always possible.
Therefore, the purpose of this document is to:
* Clarify differences between NetBackup support in physical vs. virtual environments
* Describe general guidelines for support in virtual environments
* Describe impact upon specific NetBackup components: clients, servers, options, etc. * Provide references to related information
Virtual Systems Compatibility - Reference Article: TECH127089 Statement of Support for NetBackup in a Virtual Environment:
<http://www.symantec.com/docs/TECH127089>