RAID-5 offers many of the advantages of combined mirroring and striping, but requires less disk space. RAID-5 read performance is similar to that of striping and RAID-5 parity offers redundancy similar to mirroring. Disadvantages of RAID-5 include relatively slow write performance.

RAID-5 is not usually seen as a way of improving throughput performance except in cases where the access patterns of applications show a high ratio of reads to writes.