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

RAID-5 is not usually seen as a way to improve throughput performance. The exception is when the access patterns of applications show a high ratio of reads to writes. .