Your customer wants to increase the size of the DATA diskgroup on the Exadata systems. The customer is currently using 600 GB disks. Which two are the best options that you would recommend?
A. adding a High Capacity Storage expansion rack
B. expanding the Exadata rack from a Half Rack to a Full Rack
C. moving underutilized grid disks from the RECO diskgroup to DATA
D. adding a ZFS storage appliance
E. adding a High Performance Storage expansion rack