Netbackup 7.6 support for vsphere/vcenter 6.0

I think the official line will always be that it's unsupported.

Need any links?

I believe vSphere 6.0 is the same as vSphere 2015. This version is supported as from NBU 7.6.1.1. See this Featured Discussion at the top of the forum page: https://www-secure.symantec.com/connect/forums/netbackup-7611-netbackup-761-maintenance-release-1-now-available

Links...

The NetBackup SCL section for virtualization:

http://origin-symwisedownload.symantec.com/library/BUSINESS/xCL/TECH76648/nbu_76_scl.html#virtual_systems_compatibility

...which links to:

https://support.symantec.com/en_US/article.TECH127089.html

...which has an attachment:

https://symwisedownload.symantec.com/resources/sites/SYMWISE/content/live/SOLUTIONS/127000/TECH127089/en_US/NetBackup-7x-in-virtual-environments_March_04_2015_update.pdf

...see page 18.