RAID DEF

Question 1

RAID

Answer 1

Redundant Array of Independant Disks

Question 2

What does RAID do?

Answer 2

RAID combines multiple small drives into a larger unit to protect against Data Loss

Question 3

Striping

Answer 3

Spread Data across multiple drives to use them in parallel

Question 4

Mirroring

Answer 4

The same data is stored on two disk drives

Question 5

Parity

Answer 5

Information used to rebuild data in the event of disk failure

Question 6

RAID 0 - Striping

Answer 6

Uses two disks and stripes data across them

Question 7

RAID 1 - Mirroring

Answer 7

Stores identical copies of data on two drives. Requires twice as much storage

Question 8

RAID 10 - Striping & Mirroring

Answer 8

Data is Striped across Mirrored sets.
Double the number of drives, double the read and write performance.

Question 9

RAID 5 - Striping with Distributed Parity

Answer 9

Data is Striped across Disks and Reconstructed with Parity upon failure

Question 10

RAID 6 - Striping with Double Distributed Parity

Answer 10

RAID 5 but better