Storage Devices Objective 3.3

Question 1

Redundant Array of Independent Disks (RAID)

Answer 1

▪ Combination of multiple physical hard disks that is recognized by the
operating system

Question 2

RAID 0

Answer 2

• RAID 0 is great for speed but provides no data redundancy
• RAID 0 has no loss of space on the disks

Question 3

RAID 1

Answer 3

RAID 1 provides full redundancy

Question 4

Failure Resistant

Answer 4

▪ Protection against the loss of erased data (RAID 1/RAID 5)

Question 5

Fault Tolerant

Answer 5

▪ Raid can function even when a component fails (RAID 1/RAID 5/RAID 6)

Question 6

Disaster Tolerant
▪ RAID with two independent zones with full data access (RAID 10)
▪ RAIDs provide redundancy and high-availability