Mixing Management and Backup traffic

I am using 5.1 and have a dvSwitch that has a vmkernel port for management traffic as well as a virtual machine port group for traffic used to backup the environment.  Backups run nightly and use a lot of bandwidth and I need to make sure that management access is always available.  Enterprise plus is being used and NIOC Is available.  Should I use NIOC and what is the best configuration in terms of shares and reservations?  Also there are 2 physical NICs associated with this dvswitch - should my backup port group use an active / active load balancing policy?  Also - should I use route based on originitating port ID?

Thanks!