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Introduction
RAID-10
A RAID-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.
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.
RAID-10
Data 1
Data 3
Data 5
Data 7
Drive
Data 1
Data 3
Data 5
Data 7
Drive
Data 0
Data 2
Data 4
Data 6
Drive
Data 0
Data 2
Data 4
Data 6
Drive
Data 0
Data 2
Data 4
Data 6
RAID-1
Data 1
Data 3
Data 5
Data 7
RAID-1
Top-Level Arrays
Second-Level Arrays
UG.book Page 5 Saturday, October 26, 2002 12:08 PM