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6.2.4 RAID 6: Independent Data Disks with Two Independent Parity
Schemes
RAID level 6 extends RAID level 5 by adding an additional parity block; thus it uses
block-level striping with two parity blocks distributed across all member disks. RAID 6
allows two of the array member disks to have failures at the same time and keeps the
storage working.
6.2.5 RAID 0+1: Striped Set with Mirroring
RAID 0+1 combines the advantages of RAID 0 and RAID 1 with no disadvantages.
RAID 0+1 creates a mirror of the primary striped set. RAID 0+1 provides optimal speed
and reliability.
6.2.6 Enhance JBOD: Single Disk
Enhance JBOD is just export single disk to the host system. The capacity and speed
are the same as the original single disk.
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