Probabilty of Hard Drive Failure?

[stubie_doo]

Thinking of buying new drives for raid array.

I understand that storing your data on multiple drives will increase the probablity of data loss. My question is therefore how rare is it for a hard drive to die?

 

[stubie_doo]

Thanks, I hadnt actually thought about the array itself failing! I also didnt realise you could recover the array. Does this mean if the mothboard dies I will be able to re-create the array on a new one?