Data Storage and RAID Systems

What RAID system combines striping and backup features?

A. RAID 0

B. RAID 1

C. RAID 5

D. RAID 10

Answer: RAID 10

RAID 10 is the combination of RAID 1 and RAID 0, providing both striping and backup features. Want to know more about RAID systems? Read on!

In the world of data storage, RAID (Redundant Array of Independent Disks) plays a crucial role in ensuring data reliability, availability, and performance. RAID systems are designed to store data across multiple hard drives to prevent data loss in case of a drive failure.

There are several RAID levels, each offering different features and benefits. RAID 0, also known as striping, divides data into blocks and stores it across multiple drives to improve performance. However, RAID 0 does not provide any redundancy or backup capabilities, making it risky for data storage.

On the other hand, RAID 1 mirrors data across two or more drives, providing redundancy and backup in case of a drive failure. While RAID 1 ensures data availability, it does not offer the same performance benefits as RAID 0.

RAID 5 combines striping and parity data to provide both performance and redundancy. By distributing parity data across all drives, RAID 5 can tolerate the failure of a single drive without losing data. This makes RAID 5 a popular choice for data storage in enterprise environments.

However, when it comes to a RAID system that offers both striping and backup features, RAID 10 emerges as the top choice. RAID 10 combines the best of RAID 1 and RAID 0 by mirroring data across multiple drives and striping it for improved performance. This dual approach ensures both data redundancy and high performance, making RAID 10 an ideal choice for mission-critical applications.

In conclusion, RAID systems play a critical role in data storage by providing redundancy, performance, and backup capabilities. Understanding the different RAID levels and their features can help users choose the right system for their specific storage needs.