![](/images/backgrounds/285928/hp-tru64-unix-4-x-users-manual-15618770x1.png)
Probability of Logical Drive Failure
Increasing likelihood of logical drive failure > > >
RAID 0
RAID 5
RAID 1+0
RAID ADG
1 | 6 | 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | 51 | 56 |
Total number of physical drives in array
FigureHP Smart Array 641/642 Controller User Guide |
Probability of Logical Drive Failure
Increasing likelihood of logical drive failure > > >
RAID 0
RAID 5
RAID 1+0
RAID ADG
1 | 6 | 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | 51 | 56 |
Total number of physical drives in array
FigureHP Smart Array 641/642 Controller User Guide |