"As Linux grows more and more in importance as an OS for
enterprise-class servers issues of data access speed and data
safety become ever more important, too."
"This article will show how easy it actually is to install
and configure Redundant Array of Inexpensive/Independent Disks
(RAID) technology with the current breed of Linux kernels (2.2
as of the time of the writing of this article)...."
"You can use RAID in mixed configuration to provide enhanced
reliability and/or performance. Since Linux 2.2.x the RAID drivers
are delivered with all standard distributions."