The Open Source Journal

Under the right conditions (that is, with certain hardware configurations which I'll identify later) it is possible to literally double your sequential read performance from disk. That's right, I said double. All with a single command. What is this magic you ask? Read on.

I think at this stage in computers, RAID needs no introduction. It's a common component of servers, workstations, desktops, and even small, embedded devices. Still, there is some confusion between the different types of RAID (not to be confused with RAID levels, eg 0, 1...). So I'll begin with a comparison of these types, then move on to examples of software RAID in Linux and how it performs.