EMC Exam Questions

How many disks will you need if you use only 4+4 RAID 1/0 groups?

A customer has an application running on JBOD and wants to install a CLARiiON to host the application data. You determine that the application has a read/write ratio of 3:1 and a total of 1,000 4 KB random I/Os per second. Assume that the disks you will use in the CLARiiON are capable of 130 IOPS.
How many disks will you need if you use only 4+4 RAID 1/0 groups?

A.
8

B.
10

C.
12

D.
16