Raid 0+0

4 min read Jun 26, 2024
Raid 0+0

RAID 0+1: The Ultimate Performance and Redundancy Combination

What is RAID 0+1?

RAID 0+1, also known as RAID 01, is a hybrid RAID configuration that combines the benefits of RAID 0 (striping) and RAID 1 (mirroring). This setup provides both exceptional performance and data redundancy, making it an ideal choice for applications that require high-speed data access and fault tolerance.

How Does RAID 0+1 Work?

In a RAID 0+1 setup, you have two sets of mirrored disks (RAID 1) that are then striped together (RAID 0). This creates a total of four disks, with two disks dedicated to each mirrored set.

Here's a breakdown of the configuration:

  • RAID 1: Disks 1 and 2 are mirrored, and Disks 3 and 4 are mirrored.
  • RAID 0: The two mirrored sets (Disks 1 and 2, and Disks 3 and 4) are striped together.

Benefits of RAID 0+1

RAID 0+1 offers several advantages, including:

  • Exceptional Performance: By striping data across multiple disks, RAID 0+1 provides fast data access and transfer rates.
  • High Redundancy: With mirrored disks, your data is protected against single disk failures, ensuring that your system remains operational even in the event of a disk failure.
  • Flexibility: You can add more disks to the array as needed, increasing storage capacity and performance.
  • Fault Tolerance: If one disk fails, the mirrored disk can take over, minimizing downtime and data loss.

When to Use RAID 0+1

RAID 0+1 is suitable for applications that require high-speed data access and redundancy, such as:

  • Database Servers: High-performance database servers that require fast data access and redundancy.
  • Video Editing: Video editing workstations that require fast storage and redundancy to protect against data loss.
  • Cloud Storage: Cloud storage providers that need to provide high-performance and redundant storage solutions.


RAID 0+1 offers the best of both worlds – exceptional performance and high redundancy. While it requires a minimum of four disks, the benefits of this hybrid RAID configuration make it an attractive option for applications that demand high-speed data access and fault tolerance.