General question about backing up\restoring Domain Controller from VMDK

Hello,

Just curious how others are backing up their virtualized Domain Controllers keeping in mind that you may have to perform a restore from a previous backup.

Are you using the Backup Exec Agent, just backing up the VMDK or both? I cant think of any reason that i would have a need to restore from the file level as our DC's are serving no other functionality.

I did find an article on restoring a Virtualized Domain Controller so it almost appears that there would be no reason to use the Agent.

(http://www.symantec.com/business/support/index?page=content&id=TECH155176)

Any feedback, thoughts or opinions would be appreciated.

Thank you!

Steve