Using a Gigabyte onboard RAID controller I compared RAID1, RAID5 and RAID10 arrays using 500Gb Seagate SATA drives
Standalone the drives provide about 100Mb/s read and write speed.
RAID1: 2 x mirrored drives
- Read = 100Mb/s
- Write = 100Mb/s
RAID5: 4 x striped drives
- Read = 300Mb/s
- Write = 80Mb/s
RAID10: 4 x striped & mirrored drives
- Read = 220Mb/s
- Write = 220Mb/s