Backing up Netapp DB LUN Using NDMP

Hi All,

Could anybody tell me what are the best practices to backup a Netapp LUN via NDMP to tapes. and also please suggest the best parameters to keep in mind while doing this and it is like we need to have 3 sets of tapes 1 set we will have them in library and two sets should go to offsite. 

This is the plan and DB size is 2.5TB LUN , 

Tapes we are using :- LTO-4 

Netbackup Version:- 6.5.4

Servers(All Master , Media and client) :- Linux

Thanks,

Nayab