Promise Technology VTRAK E610f Product Manual page 253

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.
No. of Drives
6
7
8
9
10
11
12
13
14
15
16
RAID 50 Array
No. of Axles
2
2
2
2
3
2
3
2
3
2
3
4
2
3
4
2
3
4
2
3
4
5
2
3
4
5
239
Chapter 7: Technology Background
Drives per Axle
3,3
3,4
4,4
4,5
3,3,3
5,5
3,3,4
5,6
3,4,4
6,6
4,4,4
3,3,3,3
6,7
4,4,5
3,3,3,4
7,7
4,5,5
3,3,4,4
7,8
5,5,5
3,4,4,4
3,3,3,3,3
8,8
5,5,6
4,4,4,4
3,3,3,3,4