Your customer has been a long time Avamar Virtual Environment (AVE) customer. They
have older AVE installations along with newer installations. They notice that older
configurations are not receiving the same performance as the newer configurations. The
customer points out that both configurations have fairly high I/O requirements but use
different disk pools. They understand performance is affected by RAID levels and would like
your recommendation. Based on best practice, which RAID level is recommended for virtual
machines with high disk usage?

A.
RAID 5 or RAID 6

B.
RAID 0 or RAID 1

C.
RAID 1 or RAID 10

D.
RAID 3