Question

Our organization has used Redundant Array of Independent Disks (RAID) for over 15 years. Which of these are associated with RAID? (Select all that apply). a) Disk mirroring. b) Disk parity. c) Disk shadowing. d) Disk exclusion. e) Disk striping.

Answer 1

The associated elements with RAID are:

• a) Disk mirroring,
• b) Disk parity, and
• e) Disk striping.

Step-by-step explanation:

RAID (Redundant Array of Independent Disks) employs various techniques to enhance data storage performance, reliability, or both. Disk mirroring duplicates data across multiple drives, ensuring redundancy and fault tolerance by maintaining identical copies. Disk parity involves the use of parity information to allow for data reconstruction in case of disk failure, commonly used in RAID 5 configurations. Disk striping distributes data across multiple disks to improve performance by allowing simultaneous read/write operations across drives.

However, disk shadowing and disk exclusion are not direct components of RAID configurations. Disk shadowing primarily involves maintaining a real-time copy of data on a separate disk for backup purposes, while disk exclusion isn't a standard term associated with RAID configurations.

In summary, RAID incorporates disk mirroring, disk parity, and disk striping to optimize data storage and reliability, ensuring redundancy and performance in different configurations.

Correct answer: Option a, b and e.