What Does RAID 0 Mean?

RAID 0 is a standard RAID (Redundant Array of Independent Disks) level or configuration that uses striping – rather than mirroring and parity – for data handling.


RAID 0 is normally used to increase the performance of systems that rely heavily on RAID for their operations. It is also used to create a few large logical volumes from multiple sets of smaller capacity physical drives.

RAID 0 is also known as a striped volume or a striped set because that is all the configuration does.

Techopedia Explains RAID 0

RAID 0 can be used for setups like those big, read-only network file system servers, or if mounting multiple disks is not possible. In RAID 0, data files are broken down into smaller blocks, and each block is written to a separate physical disk drive. This process is known as striping and is called a striped disk array configuration. This can increase I/O performance by spreading the load evenly (more or less) across many drives and channels, so large data can be simultaneously accessed from the different drives and put together quickly, as opposed to a single drive reading a large file one chunk after another. RAID 0 offers great I/0 performance, but has little to no fault tolerance.


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Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…