Non-RAID Drive Architectures
Non-RAID drive architectures also exist, and are often referred to, similarly to RAID, by standard acronyms, several tongue-in-cheek. A single drive is referred to as a SLED (Single Large Expensive Disk/Drive), by contrast with RAID, while an array of drives without any additional control (accessed simply as independent drives) is referred to, even in a formal context such as equipment specification, as a JBOD (Just a Bunch Of Disks). Simple concatenation is referred to as a "span".
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