Make sure that the VMware Tools are installed on each virtual machine. Otherwise, communication problems and other issues can result. For example:
When you select virtual machines on the policy Clients tab, NetBackup cannot obtain the host name, IP address, or DNS name of the virtual machine. Policy validation may fail.
The virtual machine cannot be quiesced in preparation for the snapshot.
You cannot restore individual VMware files onto the virtual machine itself, except under certain conditions.