You are designing a VNX Block solution for a customer who is very concerned with power
consumption. The customer plans to implement a mixture of 10K and 15K SAS drives using
RAID5 4+1 traditional LUNs. What should you tell the customer in this situation?

A.
Use a combination of EFDs and NL-SAS

B.
Spin-down is only supported on 10K SAS drives

C.
Spin-down is only supported on 15K SAS drives

D.
Spin-down for SAS yields 30% energy savings