Costs and limitations of RAID 6 protection

 

There are costs and limitations when using RAID 6 protection.

• The system is capable of handling up to two disk-unit failures. However, because the amount of parity data is twice as much as parity data in RAID 5, the available storage for user data is reduced. If more than two disk units fail, the system may also fail depending on the disk pool configuration.

• Device parity protection can require additional disk units to prevent slower performance.

• Restore operations can take longer when you use device parity protection.

 

Parent topic:

RAID 6 concepts