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A customer is planning to migrate their Exchange server to a CLARiiON array using 15k drives.
The customer has the following requirements:
– RAID 5 (7+1)
– 3000 IOPS
– 50% Reads
– 50% Writes
What is the minimum number of 15k (180 IOPS) drives required?

A.
32
B.
40
C.
42
D.
48