RAID

Question 1

What is RAID?

Answer 1

Redundant Array of Independent Disks. a technology that combines multiple physical hard drives or SSD into a single logical unit.

Question 2

What is the purpose of RAID?

Answer 2

for improving data performance, data protection or a combination of both. Commonly used in servers, work stations, and storage systems.

Question 3

What is RAID 0?

Answer 3

Striping. this level focuses on data performance by striping data across multiple drives. It offers increased read and write speeds but provides 0 redundancy.

Question 3

what is RAID 1?

Answer 3

Mirroring. involves redundancy by mirroring data between two drives. both drives contain identical copies of data. best used when data protection is a priority.

Question 3

what is RAID 5?

Answer 3

data striping with parity. combines striping with parity. parity information is distributed across drives, allowing the array to recover data if one drive fails. Requires a minimum of 3 drives.

Question 4

what is RAID 6?

Answer 4

dual parity. similar to RAID 5 uses striping with dual parity for even higher data protection. it can tolerate the failure of two drives.

Question 5

what is RAID 10 (RAID 1+0)

Answer 5

combines the benefits of RAID 1 + 0. It involves mirroring multiple pairs of drives then striping (0) the mirrored pairs. RAID 10 offers both performance and redundancy but requires a large number of drives.

Question 6

what is RAID 50?

Answer 6

RAID 50 combines the the striping of 0 with the parity of 5. It requires at least 6 drives.

Question 7

what is RAID 60?

Answer 7

combines the striping of RAID 0 with dual parity of RAID 6. It provides high performance and strong data protection.