What is the usable disk space of a RAID 5 array of five 18GB drives with one drive dedicated as a sp

seenagape

9 years ago

What is the usable disk space of a RAID 5 array of five 18GB drives with one drive
dedicated as a spare?

A.
18GB

B.
36GB

C.
54GB

D.
72GB

E.
90GB

Explanation: