Calculate the Number of Tapes Required

Go to - Veeam Calculator and put in Source capacity, Daily Change, Yearly growth. Set reduction to 50%

LEAVE REFS/XFS OFF

In Primary backup - Set Daily to 7 points, Weekly as 3, Monthly as 1, and Yearly as 1

LTO6 - 2.5
LTO7 - 6
LTO8 - 12
LTO9 - 18
TS1160 - 20
TS1170 - 50