RAID 0+1

[Gordon Messmer]

Benjamin Franz wrote:
> 
> With six drives, RAID10 can withstand 1 failed drive guaranteed, 2 
> failed drives with an 80% probability and 3 simultaneously failed drives 
> with a probability of 40%. Even with only 4 drives in a RAID10 array, 
> you still get a 67% chance of surviving a two drive failure situation. 
> RAID10 is noticably more robust than RAID5 - which can never withstand 
> more than one simultaneous drive failure.

Well said.