What does IBM Tivoli Storage Manager FastBack (TSM FastBack) repository sizing best practice
guidelines recommend for planning a TSM FastBack solution?

A.
TSMFastBack repository sizing best practice is based on the average daily change rate and is
simple multiplication.
B.
TSMFastBack repository sizing best practice recommends a repository that is 3 to 5 times of
the backup source volumes.
C.
TSMFastBack repository sizing best practice recommends a repository that is 1% to 5% larger
than the backup source volumes.
D.
TSMFastBack repository sizing best practice recommends a local repository that is 1.5 times of
the backup target volumes and a secondary remote repository of same size.