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Data A&E - RAID 0+1 Explained


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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
  • - Expensive to deploy

RAID 0 Explained
RAID 1 Explained RAID 3 Explained RAID 5 Explained RAID 10 Explained