Introduction

RAID-10

ARAID-10 is an example of a dual-level array and is created by using two or more equal-sized RAID-1s to create a RAID-0.

RAID-10

RAID-1

 

Data 0

 

Data 2

Top-Level Arrays

 

Data 4

 

Data 6

 

RAID-1

Data 1

Data 3

Data 5

Data 7

Drive

Drive

Drive

Drive

Data 0

Data 0

Data 1

Data 1

Data 2

Data 2

Data 3

Data 3

Data 4

Data 4

Data 5

Data 5

Data 6

Data 6

Data 7

Data 7

Second-Level Arrays

The top level RAID-0 shares the load among the second level RAID-1s, improving both read and write performance. Since second level arrays are RAID-1, only half the total capacity of the drives in the array is available.

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Adaptec 2200S, 2120S manual RAID-10
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