VTrak E-Class Product Manual - Promise Technology, Inc.

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Chapter 7: Technology Background
The chart below shows RAID 50 arrays with 6 to 16 physical drives, the available
number of axles, and the resulting distribution of physical drives on each axle.
RAID 50 Array
No. of Drives No. of Axles Drives per Axle
6 2 3,3
7 2 3,4
8 2 4,4
9 2 4,5
3 3,3,3
10 2 5,5
3 3,3,4
11 2 5,6
3 3,4,4
12 2 6,6
3 4,4,4
4 3,3,3,3
13 2 6,7
3 4,4,5
4 3,3,3,4
14 2 7,7
3 4,5,5
4 3,3,4,4
15 2 7,8
3 5,5,5
4 3,4,4,4
5 3,3,3,3,3
16 2 8,8
3 5,5,6
4 4,4,4,4
5 3,3,3,3,4