Promise Technology Network Device EX8654 - Manual (Page 244)

SuperTrak EX Series User Manual
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RAID 60 Axles
When you create a RAID 60, you must specify the number of axles. An axle
refers to a single RAID 6 logical drive that is striped with other RAID 6 logical
drives to make RAID 60. An axle can have from 4 to 16 physical drives,
depending on the number of physical drives in the logical drive.
The chart below shows RAID 60 logical drives with 8 to 20 physical drives, the
available number of axles, and the resulting distribution of physical drives on
each axle.
RAID 60 Logical Drive
No. of Drives No. of Axles Drives per Axle
8 2 4,4
9 2 4,5
10 2 5,5
11 2 5,6
12 2 6,6
3 4,4,4
13 2 6,7
3 4,4,5
14 2 7,7
3 4,5,5
15 2 7,8
3 5,5,5
16 2 8,8
3 5,5,6
4 4,4,4,4
17 2 8,9
3 5,6,6
4 4,4,4,5