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What is “disk striping”, and how does it differ from “disk mirroring”?

April 26, 2017differ disk striping

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What is “disk striping”, and how does it differ from “disk mirroring”?

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In a RAID level 0 (or disk striping) configuration, data is written evenly across 2 or more drives. This utilizes all of the storage capacity of each drive in the array, but it provides zero fault tolerance. If one drive fails, all of the data within the volume is lost. With RAID level 1 (or disk mirroring), data is written to a primary and a “mirror” drive at the same time. In theory, if one drive fails, the other drive can be installed as the primary drive with no loss of data. This implementation requires a minimum of 2 drives of equal capacity. If one drive has less capacity, the controller will default both drives to the lower capacity.