RAID 4 performance is improved since it stripes data across the RAID Hard disks in blocks. It also provides fault tolerance using a dedicated RAID hard disk for parity. RAID 4 Recovery typically does not need a RAID Recovery unless the RAID array went offline due to a virus attack, multiple hard disk crash. RAID is never fool proof. If the RAID parity disk fails along with one disk in the RAID array, then a RAID 4 Recovery is required to recover the lost RAID data. Overall success rate for this type of recovery is about 88+ percent. The major difference between RAID 4 and RAID 5 is that RAID 4 has a dedicated parity disk, while RAID 5 parity is spread over all the RAID Disks. RAID 5 is more popular and our findings show it to be a more viable system if properly configured and managed.