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RAID 0 (Fast)
RAID0 is a combination of two physical hard drives, where the data is
striped (split) between them. It presents the best data speed, as the
data is split and written to both disks at the same time, but there is no
data redundancy. If either of the disks fail, then all of the data will be
lost.
If two equal capacity hard drives are used, the capacity of the hard
drives are combined. If two unequal capacity hard drives are used, the
capacity is double that of the smaller hard drive.