Home > Storage > PowerMax and VMAX > Storage Admin > Reliability, Availability, and Serviceability on PowerMax 2500 and 8500 Arrays > RAID 5
RAID 5 is an industry-standard data protection mechanism with rotating parity across all members of the RAID 5 set. If a hard drive failure occurs, the missing data is rebuilt by reading the remaining drives in the RAID group and performing XOR calculations.
PowerMax systems support two RAID 5 configurations: