What type of redundancy would you recommend for the Automatic Storage Management (ASM) of a file system based on RAID level 1…?

What type of redundancy would you recommend for the Automatic Storage Management (ASM) of
a file system based on RAID level 1 for the optimum performance of database using ASM
storage?

A.
high redundancy

B.
normal redundancy

C.
external redundancy

D.
use both ASM mirroring and hardware mirroring