RAID Levels

Question 1

RAID 0

Answer 1

Disk striping. No mirroring or parity.

Question 2

RAID 1

Answer 2

Data mirroring without striping or parity.

Question 3

RAID 2

Answer 3

Bit-level striping with dedicated Hamming-code parity

Question 4

RAID 3

Answer 4

Byte-level striping with dedicated parity.

Question 5

RAID 4

Answer 5

Block-level striping with dedicated parity.

Question 6

RAID 5

Answer 6

Block-level striping with distributed parity.

Question 7

RAID 6

Answer 7

Block-level striping with double distributed parity.

Question 8

RAID 0+1

Answer 8

Creates two stripes (0) and then mirrors them (1)

Question 9

RAID 10 (1+0)

Answer 9

Mirrors the drives (1) and then stripes them (0). Requires at least 4 drives.