RE: Hard Drive Reliability and RAID 0
Source: Highly Reliable Systems
With the advent of the RAIDFrame, High-Rely entered a unique world of which there was little comparison. The RAIDFrame currently offers RAIDPacs in either a RAID 5 configuration (recommended) or RAID 0. High-Rely's FirstRAID G2 and Tandem DXR also provide RAID 0 functionality but are not offered in that configuration from the factory. A RAID 0 array complicates the issue of drive reliability because the MTBF (Mean Time Between Failure) rates of the component hard drives are divided.