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- A unique identifier used on a SCSI bus to distinguish between devices that share the same bus.
Adaptec - Cite This Source - This Definition
- A SCSI term that refers to a logical disk device composed of one or more physical disk mechanisms, typically configured into a RAID level.
HP - Cite This Source - This Definition
- A logical unit is a conceptual division (a subunit) of a storage disk or a set of disks. Logical units can directly correspond to a volume drive (for example, C: can be a logical unit). Each logical unit has an address, known as the logical unit number (LUN), which allows it to be uniquely identified.
Microsoft - Cite This Source - This Definition
- command device, LUN Masking, SRM (Storage Resource Management), Storage Consolidation, Storage Virtualization, target, UCB (Unit Control Block), Unified Block and File Architecture, virtualization, zoning