Your customer’s IT group configured a VNX array and created multiple RAID 5 (2+1) RAID
Groups. They just realized their mistake and bought new drives.
How would you bring the customer into compliance with EMC best practices with minimal impact?

A.
Create RAID-5 (4+1) groups with new drives; migrate LUNs to new RAID Groups.

B.
Use the new drives to expand existing RAID-5 Groups to RAID-5 (4+1) Groups.

C.
Back up all data to tape; then destroy and re-create RAID Groups with RAID-5 (4+1) RAID
Groups.

D.
Buy a new VNX configured with RAID-5 (4+1) and use SAN Copy to migrate the data.