A.Create a system profile for each partition. Assign all needed resources as 'required'.
B.Define all system resources as 'desired' on the Testing partition. Activate only as needed.
C.Create two shared processor pools. Assign the minimal I/O resources required for each partition to the  shared pools.
D.Create both partitions with minimal 'required' resources, and optional resources as 'desired'.  Activate each partition as necessary.