Very high Read data transfer rateVery high Write data transfer rateDisk failure has an insignificant impact on throughputLow ratio of ECC (Parity) disks to data disks means high efficiency
Transaction rate equal to that of a single disk drive at best (if spindles are synchronized)Controller design is fairly complexVery difficult and resource intensive to do as a 'software' RAIDThe data block is subdivided ('striped') and written on the data disks. Stripe parity is generated on Writes, recorded on the parity disk and checked on Reads. RAID Level 3 requires a minimum of 3 drives to implement.
