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RAID technology is used to protect data as well as provide more efficient data access and capacity utilization with disk-based subsystems. RAID6 is essentially an extension of RAID5 that allows for additional fault tolerance by using a second independent distributed parity scheme (dual parity).

Why Use RAID6?

1. Growing adoption of less reliable drives
2. High capacity means longer rebuilding time
3. The failure rate significantly rises as the number of hard drives increases