RAID 3 A RAID 3 requires a minimum of 3 hard drives to configure. A RAID 3 is highly efficient and a single hard drive failure affects performance only minimally. The data block is striped and written on the data disks. Stripe parity is generated on writes, recorded on the parity disk, and then checked on reads. In some installations a RAID 3 array can recover from multiple and simultaneous hard drive failures. RAID 3 is commonly used for applications with a very high throughput, such as video production, live streaming, and video editing. The read and write speed on a RAID 3 is high.
