RAID is never a substitute for a good backup. RAID arrays can fail.
I'm not sure what happened and why it happened but my 1TB external hard drive is not working on any computer.. The computer is saying an error that the device is not recognized.. It's still under warranty.. But i'm worried about the files.. Is there a possiblity to recover the files in it??? Please help!!!
might help if you actually tell us what device you have!