Byte-level striping with a dedicated parity disk.
The rotation of each disk’s spindle is synchronized. Data is stored as sequential bytes on different disks. Parity resides on a dedicated parity disk and is calculated across corresponding bytes across the disks. Very high data transfer rates are possible. RAID 3 survives a single drive failure. RAID 3 is commonly used for video editing on Xsan (Storage Area Networks) with a stripe size of 1024KB and in a RAID 30 configuration. (Two RAID 3 servers striped.)
