ASROCK Fatal1ty H87 Performance Installation And Configuration Manual page 5

RAID 5
RAID 5 stripes both data and parity information across three or
more hard disk drives. Among the advantages of RAID 5 confi-
guration include better HDD performance, fault tolerance, and
higher storage capacity. The RAID 5 configuration is best sui-
ted for transaction processing, relational database applications,
enterprise resource planning, and other business systems. Use
a minimum of three identical hard disk drives for this setup.
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