Answer:
Any hard drive approved for use in a raid environment with 10,000 or plus rpm.
Step-by-step explanation:
RAID is a technique of protecting data against hard drive failure in which same copy of data is stored on multiple drives, in an event of drive failure
data is secured on other RAID drives.
A Raid 5 system provides optimum fault tolerance , accuracy and minimal downtime.
For RAID system to work best use server grade raid drive like WD-red, Seagate Constellation. For higher speed use high RPM drives