Raid Arrays

Question 1

Has at least 4 drives - 2 drives saving half data each and two drives saving parity - could lose 2 drives and still be okay.

Answer 1

Raid 6

Question 2

What are raid arrays used for?

Answer 2

Used to speed up data access and to protect data, or both

Question 3

What are the most common types of raid?

Answer 3

0
1
5
10

Question 4

Uses disk mirroring and disk striping to protect data in pairs - needs at least 4 drives - could lose 1 drive in each pair and still be able to recover data

Answer 4

Raid 10

Question 5

Proprietary Raid

Answer 5

Can setup any amount of drives yourself with software like windows spaces

Question 6

Raid 1 and 0 require at least how many drives?

Answer 6

2

Question 7

Raid 10 requires at least how many drives?

Answer 7

4

Question 8

Saves pieces of data across two or more drives - speeds up transfer but if one drive fails you’ve lost all your data

Answer 8

Raid 0

Question 9

Parity is distributed across all drives - you could lose one drive and still be okay.

Answer 9

Raid 5

Question 10

Raid 5 requires at least how many drives?

Answer 10

3

Question 11

Raid 0+1 has how many hard drives?

Answer 11

At least 4

Question 12

What is Parity?

Answer 12

Needs 3 drives - first two save half the data each and the 3rd saves the parity data needed to help recover either of the first two hard drives failing

Question 13

Saves the same data across at least two drives so if one fails you still have your data - slower process

Answer 13

Raid 1