It can be argued that RAID-0 is not really RAID, since it does not honor the first letter of the acronym, which stands for Redundant. This is the only level that offers pure striping without redundancy. This striping can greatly increase performance, but it reduces the mean time before failure (MTBF) since a block of data is striped (spread) across many drives and the failure of any one drive causes the system to fail. There are few cases where you will want to implement this on its own.