RAID 0+1

- Provides redundancy by writing all data to four or more drives. RAID 0+1 combines the benefits of RAID level 0 and RAID level 1. This offers both striping and mirroring with no parity generation. The RAID 0+1 also provides high performance and resilience to RAID 5.

Advantages

• No parity generation
• Easy to implement
• Utilises full disk capacity
• 4 drives minimum
• Higher performance than RAID 5

Disadvantages

• Inefficient use of disk space
• High disk overhead / Expensive
• Costly to deploy

Applications

• General File servers
• Imaging applications
• Medium size database applications