You are designing a storage solution for a customer who has three data centers on a campus and
a 10Gb/s network infrastructure. The business requirements state that a complete site failure must
be tolerated. You propose six HP Storevirtual 4530 nodes split evenly between the sites.
Which Network RAID level should you recommend to the customer to meet their business
availability needs?

A.
Network RAID 5

B.
Network RAID 10+1

C.
Network RAID 10+2

D.
Network RAID 6

Explanation:
D -Alsopossible,but slow write performance,see “LeftHand Stoarge User Guide” p 145.