RAID 5 is a redundant array of independent disks configuration that utilizes disk striping with parity. It provides redundancy by writing data and parity information across the drives (3 or more), thus enhancing performance. Stripping also allows users to reconstruct data if any of the disks fail.
RAID 5 is the most popular RAID because reads and writes are more evenly balanced in this type of configuration.
• Provides best performance / protection
• Most flexible
• High read and medium write data rate
• It allows multiple simultaneous writes
• Requires minimum of 3 drives
• Highly efficient
• Suitable for small write application
• Failure of disk can adversely impact the performance
• Inefficient with large file transfer