E-4

About RAID

RAID 10

This dual-level RAID type is created by using two or more equal-

sized RAID1 arrays to create a RAID 0. Both read and write

performance are improved due to array striping. However, the

performance improvement costs additional storage space due to

the mirroring of the arrays.

Drive
RAID 1 RAID 1
Top-Level Arrays
Second-Level Arrays
Data 2
Data 4
Data 6
RAID 10
Data 2
Data 4
Data 6
Data 0
Data 2
Data 4
Data 6
Data 0
Data 3
Data 5
Data 7
Data 1
Data 3
Data 5
Data 7
Data 1
Data 3
Data 5
Data 7
Data 1
Drive
Drive Drive
Data 0