Core 1 - 3.3

Question 1

Raid 0

Answer 1

-Striping
-NOT redundant (ZERO redundancy)

-Files blocks split between between 2 drives
_______________________
Ex:

Disk 1:
Block 1A
Block 3A
Block 5A

Disk 2:
Block 2A
Block 4A
Block 6A

Question 2

Raid 1

Answer 2

-Mirroring / Duplicated blocks from one drive to another
-Is Redundant

_______________________
Ex:

Disk 1:
Block 1
Block 2
Block 2

Disk 2:
Block 1
Block 2
Block 3

Question 3

Raid 5

Answer 3

-Striping with parity
-Requires a MINIMUM of 3 disks
-No duplication of information
-Parity allows to recover information
-Is redundant

Question 4

Raid 10

Answer 4

“A stripe of mirrors”

-Easiest way to understand: Literally a combination of raid 1 + 0
_______________________

Disk 1:
Block 1
Block 3
Block 5

Disk 2:
Mirror of Disk 1

Disk 3:
Block 2
Block 4
Block 6

Disk 4:
Mirror of Disk 4