52 DS8800 Performance Monitoring and Tuning
3.1 RAID levels and spares
The arrays on the DS8000 are configured in either a RAID 5, RAID 6, or RAID 10
configuration. The following RAID configurations are supported:
6+P RAID 5 configuration: The data and parity information in this array is spread across
seven drives. From a capacity perspective, this configuration represents the logical
capacity of six data drives and one parity drive. The remaining drive on the array site is
used as a spare.
7+P RAID 5 configuration: The data and parity information in this array is spread across
eight drives. From a capacity perspective, this configuration represents the logical capacity
of seven data drives and one parity drive.
5+P+Q RAID 6 configuration: ...