RAID 5 is a pretty magical thing overall, though a large portion of its magic lies in how it works on a bitwise level.  But before I get into the bitwise sorcery, I’d like to briefly explain what RAID5 is. RAID stands for Redundant Array of Inexpensive (or Independent) Disks. There are a number of different types of RAID such as RAID0, RAID1, RAID5 and RAID6 which each store data in different ways and have different space efficiencies and fault tolerances.
» Read more: How RAID 5 Works at a Bitwise Level