RAID 5 A RAID 5 requires a minimum of 3 drives to configure. A RAID 5 is the most common and versatile RAID array design, and is used for databases, email servers, file servers, and critical application servers. A RAID 5 is a striped array with segments consisting of RAID 5 arrays and has the highest data reading speed of RAID models. Each entire data block of a RAID 5 is written on a data disk, parity for blocks in the same rank is generated on writes, recorded in a distributed location, and then checked on reads. In some installations, a RAID 5 array can recover from multiple and simultaneous hard drive failures.
