RAID 6 overview

RAID 6 is a method of increasing the data protection of arrays with volume data spread across multiple disk drives.

RAID 6 increases data protection by adding an extra layer of parity over the RAID 5 implementation. By adding this protection, RAID 6 can restore data from an array with up to two failed drives. The calculation and storage of extra parity slightly reduces the capacity and performance compared to a RAID 5 array.

Note: RAID 6 is the recommended and default RAID type for all drives over 1 TB. RAID 6 and RAID 10 are the only supported RAID types for 3.84 TB Flash Tier 1 drives and 1.92 TB, 7.68 TB, and 15.36 TB Flash Tier 2 drives.