I have checked the symantec backup exec with most of the options and gathered many information to make a backup strategy. i plan to use the Partition insted of Media.
Lets say i have 2 partition
Partition1 using Tape 1 and Tape 2
Partition2 u...
So meaning to say if i have 2 tapes my settings should be
30 OPP and 30 AP,
So tape 1 will be used for 30 days and opp start for next 30 Days for the first tape
Tape 2 will be used for 30 days and opp start for next 30 Days for the second tape
...