I have this pdf file named,
Symantec TechNote 293350
How to configure and use
NetBackup 6.5.1 for VMware
And it says this
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■ For backups of the entire virtual machine that allow individual file restore
(2-Mapped FullVM), incremental backups are not supported.
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Then again it has this on later page
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Configure incremental backups for VMware
Incremental backups of virtual machines must be based on timestamps, not on
archive bit. You must configure the NetBackup client on the VMware backup
proxy server as follows.
To configure the client on the proxy server for incremental backups:
1 Start the Backup, Archive, and Restore interface from the NetBackup client
that is installed on the VMware backup proxy server. For example: click
Start > Programs> Veritas NetBackup > Backup, Archive, and Restore.
2 Click File > NetBackup Client Properties.
3 On the General tab, make sure Perform incrementals based on archive bit is
clear (unchecked).
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And finally, this
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■ For incremental backups, make sure the VMware backup proxy server is
correctly configured. Otherwise, NetBackup performs only full backups.
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:-)
Abe