A storage administrator has reclaimed several LUNs from an old server that was decommissioned. All LUNs were reclaimed from the same 8+1 RAID 5 group. Which of the following can the administrator do to improve performance for the remaining LUNs?
A. Reinitialize the disk
B. Defragment the group
C. Move the group to another controller
D. Recreate the group
