Your customer has LUNs with a total size of 20,000 GiB. The total I/O load is 15,000 IOPS,
with a 4:1 R/W ratio. Analysis of your customer’s data indicates that data skew is 90%. RAID
5 is used exclusively in the environment.
How many 200 GB Flash drives would be needed to handle the load of the working data
set?

A.
10

B.
15

C.
20

D.
25