Creating RAID-5 Volumes
RAID-5 volumes, formerly called stripe sets with parity, are fault-tolerant solutions that write data in a stripe across three dynamic or more physical disks. As the data is written, a parity bit is included that can be used to regenerate the data if one of physical disks fails. A RAID-5 volume is a good fault-tolerant solution that has less cost per megabyte than a mirrored volume. RAID-5 volumes cannot be extended or mirrored. To create a RAID-5 volume, follow the steps in the previous section. You need at least three dynamic disks that have free unformatted areas.