Understanding RAID 1+0: Creating a Striped Set from Mirrored Drives

What type of RAID creates a striped set from a series of mirrored drives?

a) RAID 0+1
b) RAID 1
c) RAID 5
d) RAID 1+0

Final answer:

Option d) RAID 1+0 (also known as RAID 10) is the RAID type that creates a striped set from a series of mirrored drives.

Answer:

RAID 1+0 (also known as RAID 10) is the RAID type that creates a striped set from a series of mirrored drives. It combines the features of RAID 1 (mirror) for redundancy and RAID 0 for striping (improved performance).

RAID 1+0, also referred to as RAID 10, is a type of RAID configuration that offers both mirroring and striping capabilities. This configuration involves creating a mirrored set of drives and then striping data across them for enhanced performance and redundancy.

In RAID 1+0, data is mirrored to provide redundancy, meaning that the same data is written to two separate drives simultaneously. This ensures that if one drive fails, the data can still be retrieved from the mirrored drive, maintaining data integrity and availability.

Additionally, RAID 1+0 employs striping, where data is divided into blocks and written across multiple drives in the array. This striping technique enhances the read/write performance of the system as data can be accessed from multiple drives simultaneously, resulting in faster data transfer speeds.

By combining the features of RAID 1 (mirror) and RAID 0 (stripe), RAID 1+0 provides a balance between data protection and performance. It offers the redundancy of mirrored drives for data resilience and the speed benefits of striping for improved system performance.

Overall, RAID 1+0 is a popular choice for organizations seeking a robust RAID configuration that prioritizes both data security and performance. By understanding the fundamentals of RAID 1+0 and its benefits, users can effectively leverage this configuration for their storage needs.